My both itunes and Iphone5 are updated. Itunes works fine but once I try to sync music to my iphone, i receive a message on my screen that says "Itunes stop working". Itunes will recognize my iphone but i stops working once i press sync. I tried it on my moms computer and backed it up and it works just find. I can not backup nor sync my iphone. i deleted itunes and reinstilled it and still the same thing happened.