The .bashrc gets executed from bash, the command-line shell, when it is
used in interactive mode. Please, try running the command line below
-----------
firefox
-----------
from a terminal window (I assume thaht [1] the terminal is using bash as a
shell, [2] firefox isn't already running and [3] .bashrc contains correct
'export' lines).
It shoud run the browser and you should be able to verify that the
workaround works; if not so, something bad happened.

So, what can be done? Well, you simply have to customize your graphics
evnironment by putting the export lines in some startup file. Since I don't
personally use that workaround, I don't remember where I put it on the
target machine: let me know wether you've been able to solve and,  if not
so, I'll get back to the target machine (next week) and tell you more.

I hope my english is understandable :-)

2012/2/9 f_padia <email address hidden>

> ok after quite a few tests, it seems that it works correctly with the
> run_firefox script every time.
> It doesnt work if I open firefox normally (from launcher icon).
> It does work if I open firefox from terminal
> This suggests to that the .bashrc file isnt loaded properly. but then if I
> type echo $LD_PRELOAD in a terminal I get the path to the acroread_exec .so
> file so .bashrc file must be loaded.
>
> So why wont it work properly if I open firefox from the launcher?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/571247
>
> Title:
>  acroread remains zombie, so pdfs won't be rendered anymore
>
> Status in Compatibility plugin for Netscape 4 (NPAPI) plugins:
>  Confirmed
> Status in “acroread” package in Ubuntu:
>  Confirmed
>
> Bug description:
>  Binary package hint: acroread
>
>  When I have to read more than 1 pdf (not only at the same time in
>  different tabs) with the adobe reader acroread firefox plugin, I get
>  some strange screens (white, black or anything non-readable).
>
>  In Konsole (sorry for error logs length, I'm not able to sort these
>  repetitive lines) :
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GtkObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_destroy: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/nspluginwrapper/+bug/571247/+subscriptions
>