Check the connections on the cable going to your motherboard. It might've been "jiggled" lose when you were fiddling with the optical drives. Just to be safe, check the cables on your drives too.
Double check the jumpers on the back of the drives. You'll have to have the first drive set as the "master" and the second one set as the "slave". The first one (master) will be the one at the end of the cable. The second one (slave) wil be the one that's connected to the second pin connector (which is a few inches away from the end of the cable where the first one was).
You can look at the cd and cdrw drives themselves to see how to set the jumpers. There should be a diagram on them telling you how they can be set. MA=master CS=cable select SL=slave. Most typically, they are set as master from the manufacturer, or sometimes cable select. It's very simple to adjust them.
If after you adjust them, and you know that you have them set right, and they still dont' show up, uninstall them and let windows reinstall them.
Now, unless you do an awful lot of CD to CD copying, I'd recomend using just the cd burner, and use the other cd rom drive in another computer or something.
Hope this helps!
Edited by stevealmighty, 21 April 2006 - 08:56 AM.
War produces veterans, wounded both physically and mentally. They have sacrificed for us.....and it is now our job to help these veterans, as they have already helped us in ways we will never know, in ways that we cannot fathom, and in ways that we take granted every day.