I've just seen this bug with 12.04 on a macbook air 4.2... I've found the culprit :
* Start compiz confg manager * Scroll to the end * Deselect "Unity MT tab handles" Et voilĂ ! Another epic compiz adventure. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/907229 Title: Compiz after resume : stucked windows with big arrows decoration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/907229/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs