well food for thought : it may have some bearing for you ????
Fdisk is for the Fat file system only (fat, Fat16 & Fat32) fdisk does not support drives larger than 127gig (not just partiton size!)
fdisk can not "see" ntfs formatted partitions; is your C drive NTFS ?????
if it is; it wont be seen
you may want to invesitgate Super Fdisk ????? its free
http://www.download.com/Super-Fdisk/...-10287081.html