Seems like this things appear with gnome-panel, restarting gnome-panel helps
** Also affects: gnome-panel (Ubuntu) Importance: Undecided Status: New -- Random drawing artifacts with 8600GTS https://bugs.launchpad.net/bugs/645915 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