Every time i sync my ipod it deletes all the songs i have , my ipod is a touchscreen 64 gb 4g and was bought last Christmas, it's on I0S6 , every time i plug the ipod back into the laptop it freezes and when it does sync it will sync to around 599 songs and then freeze , when i have restored it and come to plug it in again it does the exact same thing and i'm fed up of it , does anyone know a way to get around this or how to stop doing it permanently , btw my itunes is fully updated too so i don't think it's a problem with the software