Windows usually finds the CDRom Drive "automatically" and loads everything that's needed to allow it to work. Since you said that you can put a CD in the drive there should be power going to it. You might have a loose cable. When you start the computer the installed components are often listed on the screen although some companies put up a logo screen so you can't see everything. When you turn on the computer is there a list of installed items like how much memory you have, IDE drives installed, keyboard etc. ? If so we can look to see if your CD drive is listed there.