I'm experiencing the same issue in 100% of the time Kubuntu 11.04 with the proprietary Nvidia drivers, so this has nothing to do with Unity. I also experienced this issue in Kubuntu 10.10 but only when I had a lot of windows opened - reducing the number of open windows 'solved' the issue when it happened.
A temporary workaround in Kubuntu is System Settings -> Desktop Effects -> Advanced -> uncheck Enable Direct Rendering. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/753144 Title: focused, or maximized windows blank _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
