Ok, I found out how it happens. It works if I accept the message within 5-10 seconds, but if I leave the accept dialog up for too long, it crashes gaim.
-- [2.0 beta3] Crash when receiving transferred file https://launchpad.net/bugs/61446 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs