Ok, just purchased a Visiontek Xtacy GF4 Ti4200 128mb DDR. Had a GF2 MX400 64mb. I put the new card in, and powered up, and right off the bat, the monitor is wondering if it's plugged into the card. Also, I can see it booting behind that, but it's "flickering". I took the first card back and exchanged it for the same thing, but got the same results...... SPECS: AMD Duron 900mhz 350w Power Supply Soyo SY-K7VTA-B Mainboard 512mb PC133 I tried it with the fan unplugged to see if it was a power drain thing, but it's not...... Any ideas???