Hi, a debian user reported that “workrave” (a tool used to monitor work activity and incite user to make pauses) had problem displaying one of its icon in systray. Basically, it's too wide and the systray icon is squared or something. Original bug report is at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=527358 if you need more info. Cheers,
Should be fixed in ad5a85c (xfce4-panel-4.7.7 once released) please reopen if the bug is still reproducible with this panel.
Snapshots for testing: http://foo-projects.org/~nick/packages/xfce4-panel-4.7.6git-c37dd16.tar.bz2 or wait for xfce4-panel-4.7.7.
*** Bug 6293 has been marked as a duplicate of this bug. ***