If you set the jumpers to slave then I'll write that's INCORRECT for use on 80 conductor IDE cables. At AT66 and up speeds the newer 80 conductor cables use CABLE SELECT and slave is set by which connector you plug in.
Your post writes much, but doesn't tell if you set it up proper or used FDISK to create a partition then format it. I can't tell what your issue is.
I have some of the same problems that mailbox had in june. I found the below site at WD for alternate jumper settings. click jumper settings.
My new WD HD is 80G with 8mg cashe. I have an Asus P2-99 MB with a P111 450mhz and 512 for the ram running with Win ME. It was only when I changed the hd jumpers to cover 3-4 and 5-6 that my bios recognized the full 80g or so it states.. My bios also recognizes the hd as a master to a slave ( cover 1-2, 5-6) and as a slave itself (cover 1-2,3-4).
The boot up recogizes the new drive as 80g (or so it states) all the way around, but fdisk recognizes only 32 gigs. The warning when using alternate jumper settings is "a loss of capacity" because it states the reason for the alternate change is because "the drive capacity is larger than what the system can support".
Is there anything I can do?