Just this morning, I opened up my MBP and there were green flashing pixels all over the screen. 20 minutes before that, the flashing pixels weren't there. It's not dead pixels, because it shows up on screenshots. It's a 2011 Model, 15' and the graphics card is an Intel HD Graphics 3000 384 MB. Here is a picture of what it looks like. I've tried updating software, re-booting but nothing is working. Any help?