I've been following the status of this bug for some time, and have seen it appear on many installations, going back several releases. I believe the problem has something to do with the indicator-applet-session panel applet. I've found that when I remove this applet from the panel, the visual corruption no longer occurs. I leave the indicator-applet alone, only removing indicator-applet-session. When removed, all the essential functionality of this applet is relocated to the "System" area of the Gnome menu. It's a bonus that it removes some cruft from the panel area.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/439448 Title: Visual corruption affecting several panel applets -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
