I had my previous iphone sync to my MBP, worked great, I was able to play the music from it if I wanted etc. I upgraded today to the 3g, had successful syncs, but I am not able to play the music or videos that are on it...what gives? I must be missing something here, I did tell it to clear all the information on the phone when getting home from activation, and use the mbp as it source for music etc....I also re-authorized the computer. Could someone give me some insight and help please?