|Yeah, the bios can sometimes see the drive while fdisk can't. The usual solution is to do a low level format although with an IDE drive that sometimes doesn't work out.|
But first check that the drive data cable is in good condition and tightly connected.
If it's not the cable then most likely either the drive is shot or the LLF will fix it.
I uploaded a version of DiskManager at Driverguide:
It's got a low level format utility on it. If you download it, it's usually easiest to use the 'view a series of ads' option. Let the ad load and then click 'no thanks' or whatever takes you to the next one. They'll be 5 or 6 or them.
Another good LLF is MaxLLF. It was once a download for some of Maxtor's smaller capacity IDE drives but I've used it on larger drives. A google search should turn up a download. If you use it, format with the LBA option and not C/H/S.
Those are true low level fomats and not zero fill. And they should only be used as a last resort.
Real men don't use AntiVirus; they just reformat