I noticed this behaviour as well (up to date Edgy). Several hours before noticing the issue, gaim crashed.
At some point during the day (perhaps at the time of the gaim crash) I also had some sort of error/bug reporting dialog (which I don't think was the Gnome bug buddy), which I canceled. Not sure if either of these are related. -- Mysterious segfault of many GNOME programs makes gnome-session unresponsive https://launchpad.net/bugs/74682 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
