I have the same problem, when I play video, with vlc,totem even in youtube.
My nvidia is nVidia G84 [GeForce 8600 GT] [10de:0402] (rev a1) Driver 260.19.06 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/777669 Title: Invisible window blocks mouse interactions with visible windows after upgrading to 11.04 To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/777669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs