Ok, I figured out how to reproduce this problem. Turn off the power to your computer without (hold down the power button for 4 seconds) shutting it down from the menu. If you do this, the next time you start up Ubuntu you will have the messed up panel icons.
How is this bug report incomplete? The only thing that I am missing is the name of the package. Who knows what that is... -- Show desktop icon disappeared from taksbar https://bugs.launchpad.net/bugs/580453 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs