Since IOS 7 I cant sync my iPad 3 or iPhone 5 First it appeared to be just photos so i turned off syncing to a folder in the photo tab but it now get hung on Determining tracks to Sync step 5/6 The sync appears to go fine until it gets to step 5 as above and iTunes still appears to be accessing the drives for a while but the barber pole progress bar is static and eventually the external drive access light stops and ITunes just drops out of syncing no error messages no sync ITunes does not sync anything, no my new audio books, no...