Debug log:

john@john-Satellite-A505:~$ docky --d
[Info  21:11:05.290] Docky version: 2.0.11 Release
[Info  21:11:05.297] Kernel version: 2.6.35.26
[Info  21:11:05.298] CLR version: 2.0.50727.1433
[Info  21:11:05.406] [Gtk] Failed to load module "canberra-gtk-module": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory
[Debug 21:11:05.487] [SystemService] Using org.freedesktop.UPower for battery information
[Info  21:11:05.536] [Gtk] (for origin information, set GTK_DEBUG): failed to retrieve property `gtk-enable-event-sounds' of type `gboolean' from rc file value "((GString*) 0x17dcca0)" of type `gboolean'
[Info  21:11:05.536] [Gtk] (for origin information, set GTK_DEBUG): failed to retrieve property `gtk-enable-input-feedback-sounds' of type `gboolean' from rc file value "((GString*) 0x17dcac0)" of type `gboolean'
[Info  21:11:05.574] [DockServices] Dock services initialized.
[Debug 21:11:05.583] [UserArgs] BufferTime = 0
[Debug 21:11:05.583] [UserArgs] MaxSize = 2147483647
[Debug 21:11:05.583] [UserArgs] NetbookMode = False
[Debug 21:11:05.583] [UserArgs] NoPollCursor = False
[Debug 21:11:05.686] [PluginManager] Plugin manager initialized.
[Info  21:11:05.688] [DockController] Setting theme: HUD
[Info  21:11:05.721] [Gtk] (for origin information, set GTK_DEBUG): failed to retrieve property `gtk-button-images' of type `gboolean' from rc file value "((GString*) 0x17dcd80)" of type `gboolean'
[Info  21:11:05.958] [PluginManager] Loaded "Docky.Widgets,1.0".
[Info  21:11:05.958] [PluginManager] Loaded "Docky.Widgets,1.0".
[Info  21:11:05.959] [PluginManager] Loaded "Clock".
[Info  21:11:05.960] [PluginManager] Loaded "Trash".
[Info  21:11:07.541] [Helper] Starting banshee_control.py
[Info  21:11:07.557] [Helper] Starting pidgin_control.py
[Info  21:11:07.563] [Helper] Starting rhythmbox_control.py
[Info  21:11:07.578] [HelperService] Helper added: /usr/local/share/docky/helpers/banshee_control.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/deluge_badge.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/gajim_badge.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/gtg_menus.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/liferea_badge.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/open_terminal_here.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/pidgin_control.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/rhythmbox_control.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/tomboy_menus.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/zeitgeist_docky.py
[Info  21:11:07.579] [HelperService] Helper added: /usr/local/share/docky/helpers/zeitgeist_journal.py
[Info  21:11:07.601] [DrawingService] Could not find 'deluge', using fallback of 'extension'.
[Info  21:11:07.613] [DrawingService] Could not find 'gajim', using fallback of 'extension'.
[Info  21:11:07.629] [DrawingService] Could not find 'gtg', using fallback of 'extension'.
[Info  21:11:07.641] [DrawingService] Could not find 'liferea', using fallback of 'extension'.
[Error 21:11:07.760] [Helper] banshee_control.py :: Gtk-Message: Failed to load module "canberra-gtk-module": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory
[Error 21:11:07.770] [Helper] rhythmbox_control.py :: Gtk-Message: Failed to load module "canberra-gtk-module": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory
[Fatal 21:11:25.401] [Gtk] gtk_drag_dest_leave: assertion `site != NULL' failed
[Fatal 21:11:33.135] [Gtk] gtk_drag_dest_leave: assertion `site != NULL' failed
[Fatal 21:11:42.910] [Gtk] gtk_drag_dest_leave: assertion `site != NULL' failed



The last three were attempts to put my Opera icon to the very left (to be the first icon after the anchor).
Docky did not allow this and forced Banshee in front.

Docky 2.0.11 gnome 2.32.0
ubuntu 64bit