its a bug in win7, its not a virus.
The problem is the task bar is transparent...
100% best setup: Set "Color Intensity" in "Window Color and Appearance" at the lowest level, and have black background. Worse setup: Same setup but with a white background (like dragging a folder over). At its worse setup, its almost impossible to see what window is active, even on my high quality IPS panel....
Here is a screen shot of both those scenario. In both of them the middle item is "active". Even in this 100% best case scenario, I still want the middle one to stand out more.
Link Removed
note: Its not letting me make the thumbnail any bigger.