My PC has two internal 200 gig drives and two 320 gig drives. The 200 gig C drive has Windows XP, the 200 gig D drive was empty, the 320 gig drives are file storage. I just added Ubuntu Linux onto the empty 200 gig drive which worked fine. Unfortunately, now, when I boot into either system , the two 320 gig drives (both NTFS) are unreadable. The drive letters appear in Windows, but when I try to open them, it claims they are unformatted. My BIOS sees the drives and when I plug the drives into another Windows computer they work fine. How can I make my computer recognize these drives again?
