This issue is fixed in the final version of gnome-shell in oneiric, which doesn't use the notification area.
Could you verify if it still persists in lucid? ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/451728 Title: Tool tips behind panel -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs