NVidia 8800 GTX issue

[Guest]

I have an NVidia 8800 GTX, it was working ok until one day my PC just crashed when i was copying a game, when i restarted in the post screen began to appear small squares and when windows started along with this small squares appeared some lines too, just like a memory issue, that card was a present and the previous owner overclocked it, but it was workin just fine for more than 4 months after that. If anyone have an idea of how to solve this problem please i would appreciate it, thanks
Albert

 

[Guest]

I have the same problem with the same graphic card. I think you have to return it to Nvidia for repairing. its the only way.