I figured that my video card was overheating so I shut down the PC and went to bed. However, I couldn't sleep, so I turned my PC back on to see if the glitch would occur again. Here's a screenshot of my desktop with Starcraft 2 minimized.
![[image loading]](http://imgur.com/kM4rx.jpg)
I had a hunch on what might be causing this, so I thought of switching from Aero to the basic Windows 7 theme. The graphics glitch is gone.
![[image loading]](http://imgur.com/2bn0l.jpg)
So, is my graphics card dying? Or is this simply a problem with Aero?