did you read the wiki documentation indicated? the backtrace page has a "already running programs" section which should describe that
-- gnome-panel non-responsive on login https://bugs.launchpad.net/bugs/351300 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
