i have a problem that has never happened before and am lost before I call apple. Right now I can't download any updates on my mac (for apps). I click "check for updates" and it acts like it checks for a split second and then nothing (when i know there are updates as my phone shows 5 updates). This all started happening when I borrowed a friend from works' Apple TV 2 since he is going to be gone for a while. I set it up just fine and i've been using it. Coincidental? maybe but so far i'm leaning as a possible itunes account problem. If I update he apps on my iphone I occasionally get "unable to purchase". Anyone have a solution before I call apple?