This bug stopped happening for me as well in 12.04 since actually. I think I installed nvidia-304 from the nvidia website instead of through apt in order to get RandR and at the same time fixed the problem.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/747717 Title: 11.04 - opening too many windows causes new windows to render blank white To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/747717/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs