I have a GT220 1gb video card running on Vista. In summer the fan started making noises so I shipped it back to the manufacturer (BFG Tech) to be fixed. Shortly after I shipped the card they told me they were going under and my card would be shipped back unrepaired. My card came back so I bought a replacement fan off of ebay. The fan seems to work fine but now my card doesn't work well at all. It functions fine on regular 2D applications and seems to work on some older 3D games (NFS Hot Pursuit 2 for example) but anything that requires it to use a little more of it's horsepower (Blur or Burnout Paradise) causes an almost immediate black screen of death. First the monitor loses all video signal but the sound still plays. After a minute or two the sound jams as well. I've tried reinstalling games, updating the card drivers (even doing a clean install), updating my DirectX and nothing works. Since it didn't do this before I removed it to get it fixed, I'm guessing it's probably related to the new fan maybe not providing enough cooling but I'm not sure. Any ideas?