Thank you for your bug. Could you get a backtrace with gaim-dbg
libglib2.0-0-dbg libgtk2.0-0-dbg installed?
** Changed in: gaim (Ubuntu)
Importance: Undecided => Medium
Status: Unconfirmed => Needs Info
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Gaim Crashed After Topic Change in Jabber Room
https://launchpad.net/bugs/83354