I just decided to upgrade my powercolor gf2 pro to a visiontek 64mb gf4 4200. I thought it would be a good idea but it has been nothing but problems. I removed my old drivers and used Det destroyer to remove everything, shut off comp, installed gf4, booted up, installed drivers that came with card, rebooted again, went to play UT2003 demo and 2 secs into intro it locked up. Ctrl-Alt-Del cant do anything, i have to press restart button. All other games it locks up within 10 seconds. 3dmark2001 makes it about halfway thru the first benchmark and then starts artifacting and then locks up. I'm thinking its the infinite loop error so I have been bouncing off of message boards all over and i've found many people are having probs with soyo dragon mobos and gf4 cards in combination. Ive emailed visiontek and i am waiting for a reply. I'm running win98se. If any1 can help i would very much appreciate it.