So, I go to reinstall Windows today onto a Seagate 120gb 7200rpm Ultra ATA/100 Barracuda hard drive, which requires me turning off my computer and adding the hard drive (making it the fourth in there). Well, I install it fine, BIOS recognizes it. but Windows doesn't. I put in the Windows XP cd to reinstall with and it says "No hard drives detected" which registers as a huge 'what the fuck' in my head. =\