[Hardy] You cannot change the settings in Services and Time and Date

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You cannot change the settings in Services of GNOME, the application is found in System>Administration>Services. The problem is similar to Bug#177886, but in this case, you can press the Unlock button and change the settings without getting any error message, but the settings are not saved, so if you close the Services window and open a fresh one again, the settings are not changed at all.

Launching services-admin in a terminal I received the following error:

process 26519: arguments to dbus_pending_call_unref() were incorrect, assertion "pending != NULL" failed in file dbus-pending-call.c line 563.
This is normally a bug in some application using the D-Bus library.

I have the same problem with time-admin: I click on Unlock and change the time zone then. On the next start of time-admin I see the old time zone again (and the desktop clock does also not switch to the new time zone).

I have to do an ugly

sudo dpkg-reconfigure tzdata

to change the time zone.

This issue is fixed when you upgrade the policykit-gnome package to version 0.7, this can be done by a simple update.