Yup, definitely desktop notifications in chrome cause it. I just had 5 emails come in back to back and noticed the white box pop up when the notifications came up.
@omer: When it last happened I opened up ccsm and turned off panel opacity (set it back to it's defaults). No difference. The box still remained. -- 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/ubuntu/+source/unity/+bug/940603/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs