I have recently noticed a portion of my screen gets blocky artifacts when there is any motion in that area. It's a square area about 200x200 pixels. Here's a screenshot I was able to capture: In the picture it's just gray, but when there is any motion, say scrolling in a web browser, it will get blocky and skip around. I first noticed it when watching TV full screen immediately after installing my Formac Studio TVR. I thought it was just a buggy application, but now I get the same problems everywhere else. So does anyone have any idea what causes this? I don't see how it could be software-related since it happens everywhere... maybe it's a graphics card issue? Any help would be greatly appreciated!