I have been playing wow for a few months and am now having a pretty serious issue. A few days ago i hopped on to play and the computer randomly shut itself off. That problem repeated itself every time i would play it along with blue screens. I reformatted my computer afterwards and it is running much faster with no crashes or blue screens anywhere else. But now when i try to play WoW i get a weird crash that involves my screen being covered in multi-colored vertical lines and an extremely horrid sound. This forces me to hard reboot. If i reboot too soon after the crash my system start up and all the text is a green color and the system fails to start. Any help?