If, after re-formatting a hard drive, you can no longer see the CD-DVD drive in windows explorer . . . and you knew it was working before you re-formatted . . . what steps would you take in trying to resolve the issue to get your system to see it and get it working again. This happened on a Compaq Presario desktop (@ 5 years old) running XP Home Premium. Got a couple of very "unprofessional" responses on this a few days ago. Thought I'd try again. Could BIOS settings have any effect on this? Should it still be visible in Device Manager even though it's not visible in Windows Explorer?