I'm beginning to think this lies outside of a software issue. While watching a racing video the other day, everything on the screen got HUGE and froze the computer. Thereafter it wouldn't boot XP. I got it to now boot into XP and I can login by deleting the display adapter. However, after I've been in Windows for 30 seconds or so it goes to a blank black screen with a blinking cursor. No keyboard or mouse commands work. The CDROM still opens. What are some likely scenarios? This is on a Dell Dimension 8250. It has old RDRAM in it. I tried taking a stick out to test it but the computer just started beeping without it. There are 4 sticks. I'd rather it be the video card than the RAM if anything at all hardware related.