I replaced my main Hard Drive for a WD3200AAJB 320 Gb but after loading XP it says actual capacity is only 130 Gb. If I go to BIOS then it says size is 320 Gb. I go to disk management on XP and I dont have an option for expanding the size. I also installed Partition Magic and dont seem to be able to expand the size of the partition. It is NTFS formated. Any suggestions? Thanks!