Thank you for reporting this to Ubuntu. Does this happen after your computer returns from being suspended or from having the screensaver up? It sounds like this may be a duplicate of bug 438868 but I want to make sure you are experiencing the same behavior.
Thank you for reporting this to Ubuntu. Does this happen after your computer returns from being suspended or from having the screensaver up? It sounds like this may be a duplicate of bug 438868 but I want to make sure you are experiencing the same behavior.