I think I'm getting this problem on both my systems. (Certainly the symptoms are very similar and they're both Intel 945 graphics.) I've switched to the non-themed greeter (SystemSetting/Advanced/LoginManager) and this appears to be sufficient to avoid provoking the problem.
-- Non-admin user logout fails on Lucid https://bugs.launchpad.net/bugs/569879 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