I would like to confirm this bug and add my request for it to be fixed. I run in to it as well on a daily basis, and it can be a serious annoyance at times, obscuring important regions on screen.
-- Tooltips linger annoying after changing desktops. https://launchpad.net/bugs/50973 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs