I have a MacBook with Snow Leopard installed. When Itunes is opened, I seem to be having this problem where I plug in my headphones and all of a sudden the sound is extremely distorted and sounds like the music is skipping. When I reopen Itunes with the headphones in, the sound is perfectly fine. Then if I take the headphones out, the speaker starts to distort this sound. This happens anytime I play anything with Audio whether from the internet, quicktime etc, when iTunes is open. When iTunes is closed, the sound works perfectly fine. Anyway I can fix this?