I'm sorry, but I have to attache my xwininfo. :-( Did you maybe not enable the animations plugin?
** Attachment added: "xwininfo" https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/940603/+attachment/3014199/+files/xwininfo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/940603 Title: white box randomly shows up at top left corner blocking applications from using stuff under it To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/940603/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs