I have my brand new iPhone 4 and after getting through the yellow spots and reception issue, the only problem I have now is syncing photos to the iPhone. Every time I try and sync some subfolders from the Pictures folder it doesn't do anything and gets stuck on 'syncing' in iTunes. It doesn't even start optimising photos and I always have to cancel the sync manually. Never had this problem before on the iPhone 3g/iOS3. Please help!