I have been using computers forever now and finally I go out and buy a graphics card. I bought a MX 440 and it worked great, then I found the price went down 25 dollars and I took it back and got the newer FX 5200. So I popped it in and started playing NBA 2k3 and every once in a while the screen would go black and I could do anything. So then I looked around and found out I should go to the override screen and turn everything to like 75 so I did. However its still doing it every once in a while. I was playing UT 2003 and it does it all the time. Please help