I found this, when using compiz config settings manager, and disabling Metacity Workarounds Plugin it stoped to happend, so is the problem with compiz and this plugin? except for Kde apps, they keep crashing all the time
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/729979 Title: Windows sometimes become blank/transparent when changing focus to them in natty -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs