Can you see the CD ROM in the BIOS every time you reboot? If you can then the fault is software and if not then it is hardware. If it is software then you will need to delete the upper and lower filters in the registry. If it is hardware then the fault is probably a faulty CD Rom drive or worst case a faulty motherboard.
I will check to see if I see it in the BIOS when I reboot. If I do see it and it is software, how and where do I delete the upper and lower filters in the registry? What do these do anyway?
Thanks for your answer. It sounds logical.