I'm upgrading my daughter's system. It has an ABIT TX-5 mobo. The on-board IDE does not support ATA/100 so I bought a Maxtor ATA/100 PCI card. I attached a Western Digital 60 GB ATA/100 HDD (WD600BB) to IDE 1 on the card. I try a fresh install of Win2K Pro on the HDD and ensure Win2K setup loads the Maxtor card drivers from the floppy. Setup recognizes the drive & size, then allows partition (I opt to partition the entire drive less the 8 MB Win reserves). Setup then tries to format the drive as NTFS and runs all the way to 100%. However, it then comes back with "Unable to format drive. Drive may be damaged or SCSI devices may not be terminated properly." I exchanged the drive to be sure, and I have no other SCSI devices (I understand the ATA/100 card is detected as a SCSI device). I try again and get same error after format. I consult tech support and they tell me Win2K does not support Ultra ATA/100 w/o Service Pack 2, and recommend I use the WD config disk to reconfig drive to Ultra ATA/66, do the Win2K install, then go back and re-enable ATA/100. I tried and get same error after format. A friend suggested I go out to Maxtor to download updated driver for ATA/100 card, which I did. I'll try with new driver now. In the mean time (in case still doesn't work), anyone have any other ideas? I also saw Intel has a new Ultra ATA Storage Driver they recommend installing on 430TX chipset mobos. Do I still need to do this if I'm using the ATA/100 card?