I just received my brand new 13" 2.53 GHz MacBook Pro. Upon getting it, I put my old 500GB WD Blue hard drive in the computer so that I would have all my old files and such ready to go. I'm having a major problem now though. In iTunes, while listening to music, ALL tracks will sort of "freeze" for about 1-3 seconds when the song is about halfway to 3/4 of the way through playing. I REALLY hope this is not a hardware related problem. Does anyone have any suggestions of what I can do? I really need help...