Can anybopdy help me as im about to throw this thing against the wall. At first it would synch and load up in itunes quite quickly , but now when i sit the iphone in its dock it takes itunes ages to load up and then when i try and synch it synchs the music but then says backing up iphone and stays there. Ive waited half an hour now and it still says backing up.

What is the problem??

Matt