My computer crashed last night. I have a backup that I use for presentations only. The original ran XP as the OS, the new one (the backup) runs Vista. I installed the hard drive (to recover it's data) from the XP desktop into the Vista desktop, but now it won't detect it's cd-rom drive. I moved the CD drive from the SATA 2 to the SATA 3 port and plugged the new hard drive into the SATA 2. The hard drive does work, but the CD drive doesn't. The power works to it, but VISTA isn't detecting it (it doesn't show up in My Computer.) Please help! This is the main computer for a business... it runs our front desk.