I always have to reboot my ipod touch 5g before I can sync anything with itunes. i usally notice this if I have nnoticed this after installing jailbreak tweaks. It dont matter wht tweak it is. It makes the sync button grayed out until I rebout my ipod touch. I am not sure if its the respirnging mulitple times that is causing it. I just hope this bug gets fixed. Is anyone else having this issue?