I have had this problem as well. However, my jabber server isn't running jabberd2, it's running Wildfire.
** Bug 48208 has been marked a duplicate of this bug -- gajim goes psycho when someone approves me https://launchpad.net/bugs/44321 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs