Well, I just got my 8600gt and I was amazed. So I put it in, started it up and nothing. My screen was completely black. I was confused so I turned it off and turned it on again. NOTHING! I took my card out and turned the computer on and it worked perfectly, then I put the card back it and nothing again. Whats the problem? It shouldn't be my PSU because in the specs it told me that it ran on a minimum of a 300W PSU so I thought it was ok cus I got a 300W. I don't know what happened but can I fix it or do I have to buy a new PSU? Seems like a waste having this beauty just sitting there on my desk and not kicking ass on CoD4.