This may not be due to update-manager, since it sets Unity as default, and Unity has been reported as not playing nice with Gnome Classic/fallback CCSM settings, https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1009216
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/994893 Title: No window border/titlebar/control item after release upgrade from 11.10 > 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/994893/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs