This is probably as frustrated as I've ever been (with a computer, at least). I basically replaced my whole system. I was at my last step, installing the new video card (a PNY Geforce4 ti4400), and when I rebooted the whole screen became covered with little red dots.... later on, it became little blue squares instead. That was quickly followed by lock ups. This was with Windows ME initially. A friend told me to upgrade to Windows XP, since Windows ME was buggy (he said). When I did so, it was the same thing, except when I install the new Detonator drivers (dated 4/26/2002), or even the ones that came with the video card, it won't boot back into Windows XP, except in safe mode. So I am currently running my system with Standard PCI VGA Adapter drivers installed (a very expensive PCI VGA adapter, mind you). Anyway, this is my system: MSI KT333 Ultra ARU motherboard XP 2000+ AMD CPU 2 256MB PC2700 (333MHz) sticks of memory Soundblaster Audigy OEM soundcard Intel Pro/100+ PCI Network card 2 60GB Maxtor 7200RPM ATA133 HDD in RAID 0 (striping) mode TDK 40X12X48 CD-RW drive Pioneer 105S slot DVD-ROM Envision e7100 17" LCD Monitor PNY Geforce4 ti4400 video card Two important points: This exact same system works PERFECT with my previous video card, an Elsa Gladiac Ultra (Geforce2 Ultra). Also, the Geforce4 ti4400 has been tested in two other computers, one which had WindowsXP installed.