Comment 7 for bug 758683

The problem recurred and was 'solved' again by quitting and restarting docky, no need for dpkg-reconfigure.
I noticed some warnings come up when I launched docky from within a screen session, not sure if they are related to this problem or not:

aspiers@cape:~$ [Info 19:41:04.782] Docky version: 2.1.2 Release
[Warn 19:41:05.164] [DesktopItemService] Could not find remap file '/home/aspiers/.local/share/docky/remaps.ini'!
[Warn 19:41:07.311] [DrawingService] Error loading icon from file '/usr/share/pithos/media/icon.svg': Failed to open file '/usr/share/pithos/media/icon.svg': No such file or directory
[Warn 19:41:07.465] [DrawingService] Error loading icon from file '/usr/share/pixmaps/workrave/workrave.xpm': Failed to open file '/usr/share/pixmaps/workrave/workrave.xpm': No such file or directory

/home/aspiers/.local/share/docky/ exists, just no remaps.ini.
I have no /usr/share/pithos/
/usr/share/pixmaps/ exists, but no workrave directory.