I just bought a new Western Digital Black 3TB HDD, but my system sees it as only having 746.39 GB. (System: 2011 Dell XPS 8300, Win 7,64x). I've got several other >2TB drives connected to this PC (including one WD) and it sees their full capacity just fine. Same result whether I connect the drive via USB or plug it directly into the mobo's SATA port. My new Win 8 laptop also sees it as only 746 GB. I'm stumped. Any ideas?