I would contact your hardware supplier or the manufacturer of the drive.
Could you go to your BIOS settings and "load default"?
I recently required a Freecom FHD-1 external (USB) hard drive. The problem is that I have to disconnet it everytime I boot the computer otherwise it boot. I've tried changing the (AMI)BIOS settings regarding the boot seequence without success. I'm running a Win XP SP2 system.
Does anybody have any ideas how to get around this problem?