Hi Bods. The first thing is to check if the drive is recognised by the BIOS. It should be reported as present during initial boot, bu on modern fast computers this often happens so quickly that you may not spot it, so your only option is probably to enter BIOS setup, probably by pressing the Del key during boot up, but your BIOS may require a different key. If BIOS can't see the drive, Windows certainly won't, and you may have a loose connection, or a faulty cd drive. If you have another drive working on the same IDE cable, the motherboard probably isn't faulty.