My name isXXXXX understand you're having a problem with playing Audio CD's let's see if we can figure out what is going on. I'd like you to please tell me what happens when you insert an Audio CD, does the computer launch iTunes?
If not can you please open up iTunes and try to play the CD from in there. I'd like to know if first of all, it plays at all, if not do you see the song advancing in the iTunes tool bar but just no audio is coming out, or does the CD not even get recognized by iTunes?
Once you get back to me with this info, we can proceed further. Thanks.