Has it ever worked?
How old is the drive?
Do you have a BOOTABLE CD you could try to boot from as a check on whether the drive itself is dead?
Was it maybe hidden by someone with TweakUI?
Who else uses the computer?
for some reason my computer wont read any CDs when i insert them in the CD-rom drive...and when i tried to open them in the D:\ drive in My Computer, the D:\ icon isnt even there.....i dont know much about computers, and i was wondering if it is possible to get that icon back