I just checked what would happen if I switched to "Normal" Visual Effects. After making the switch, the System Monitor window started painting properly again (so did Gnome Do) which leads me to conclude that this may be metacity bug because I know that "Normal" uses Compiz.
Of course, I'm not an expert on these subjects so these are just my guesses, and I wanted to provide as much helpful debugging info as possible. -- System Monitor window won't paint https://bugs.launchpad.net/bugs/459763 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