Lots depends on the service pack level of your Win2k boot disk, your Parted Magic version (if it's as old as your OS disk), also your hardware (if as old as the software), motherboard and its Bios version. And if IDE, have you checked the jumper settings ? Partition scheme; is D a primary partition or part of a bigger extended partition ? Do you have the possibility to check both drives on an other machine ? The fact they both fail "after few hours" is a bit suspect. First, how does Bios report the disk(s) ?