built a system on raid o configuration, upgraded other components and freshly installed windows xp only to one drive. Bios details on the other hard drive correct but my computer folder properties shows the number of gig when it used to be on raid o with the other hard drive. Tried reformatting it but error says windows cannot format, tried to take it out but can't boot saying missing file and need to re-install it. left it there and bought another sata drive for storage, now the problem is the new hard drive gets recognized in the bios correctly but not on my computer folder nor in the administrative tools section of windows. also the hard drive that i installed windows on is on drive d while the c drive( the old drive) is for my storage. can anybody out there help me out.