Recently got an HD 3850 agp video card for practically nothing, and now I know why. I thought it would be fun to install into an older P4 system and see what it could do. The screen is all messed up at start-up, and then has 4 sets of 8 colorful vertical lines. I installed catalyst from AMD, and then rebooted. It got worse until I restarted again. Now back to 4 sets of lines. The computer recognizes a VGA compatible device, but of course it cannot locate drivers, and I cannot find them anywhere. Even went to AMD's website, and they don't have em. Super old card, and all that, but would be cool to get it working right if possible. Thanks