As my iBook has a problem with the DVD drive I thought I finally open it up and look what the problem is. The drive is recognized by OS X but when I try inserting a disc nothing happens. Really nothing, not even a noise. Because everybody is complaining about opening an iBook I tried to aviod that as long as I could. Today now I gave it a try and voila - a problem arises. One of the rear screws probably damaged its thread/bearing (dunno what the right word for that is, I even don't know it in german the thing where the screw is to be turned in). So I can turn the screw as often as I like but it won't come out of the iBook. Any advise what I should and should not do now?