Hey Simpatico,
Here is what I was able to come up with, this is a link to Western Digital's Knowledge Base regarding the fdisk issue and it inability to see the full size of the drive, it also includes a link to Microsofts fix.
http://wdc.custhelp.com/cgi-bin/wdc....cGFnZT0x&p_li=
Long link I know, anyways this should fix your problem right up.
Good Luck,
Anthony