Okay so i have a amd hd 7770 graphics card and the problem is .. i was playing a game and suddenly the display gone. I restarted my pc but after the windows logo there is nothing. But when i connect the displag cable to my motherboard the pc is fine. I thought it might be my windows so today i installed windows 7. It booted properly, then I downloaded amd drivers from the website. It installed properly and told me to restart. I restarted my pc and again the same problem. Please help me guyzzz pleaaseee...