It appears that bug 81107 is a duplicate of this. In addition, this appears to be happening to a variety of people with many programs. There is a forum thread here about this issue: http://www.ubuntuforums.org/showthread.php?t=347023. It may be related to the fact that all programs launched from the panel share the same PGID; a gnome developer claims that assigning a shared PGID to apps from the gnome panel is not standard gnome behavior.
-- gossip-telepathy out of the panel when gnome-panel respawned https://launchpad.net/bugs/80370 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
