So it started only a few months after I got the computer, if I'm watching videos that I download or play games it gets worse. I have a windows 7 with Nvidia and when I do things like watch videos or play games, sometimes just using my computer I start getting these little red pixelated squares on my screen. I can screencap the squares and sometimes if I close and restart what I'm doing a few times it gets better. It seems more likely to do it if I'm playing a downloaded movie than on youtube. But, sometimes they're hanging on my desktop.
Windows 7 service pack 1
Cyberpower inc --------------manufactured
Intel Core i3-2100 cpu 3.20ghz
NVIDIA GeForce GT 520