Should I be worried about this? (UI mess up)

[pknz]

Start up screen seems to have gone a bit funny on a restart. Next restart this didn't happen? Is it something to be concerned about, or have other members had this happen to them?

There is a window behind the login window/choose user window.

Thanks

 

[mad jew]

Strange. If it happens again, enter an incorrect password and try to notice whether it shakes with the main window. I wonder if they're attached.