Karol, I believe this bug is caused by the compiz mipmapping code. So you should be able to work around it by:
1. Install compizconfig-settings-manager 2. Run ccsm 3. CCSM > Window Management > Application Switcher > General > Mipmap = OFF -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1006216 Title: [nvidia] switcher+nvidia: Alt+Tab makes compiz hang and shows white preview windows To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1006216/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp