Ok so i was given a computer. It is a desktop with a decent MSI mobo and a 250gb seagate sata drive. I loaded win 7 on it after formatting the Hard Drive. It ran fine but after running the sys for a while the whole screen scrambled. I was unable to see anything except for the mouse pointer. Then after a few seconds i got the blue screen. It recomendmended that i restart so i did then it started fine. Im not sure what woiuld cause it. Let me know any ideas