I bought my MBP about 5 days ago. I had trouble getting my PC backup files to restore the phone on the Mac, but I ended up restoring it on my wife's laptop instead. Since then I have hooked my phone up to my MBP and backed it up 3-4 times with no problems. Today I plug in my iPhone and the iPhone shows that it's charging, however my computer doesn't seem to recognize it. It's not showing up in iTunes and I would really like to backup and work on my music playlist for my phone. Suggestions?