Hi there... i've recently rebuild my itunes library coz i've moved alot of mp3 around my pc and itunes keep showing that lame '!' sign so i decided to rebuild the library... but after doing that... whenever i transfer songs into my ipod with itunes, itunes hangs... it doesn't hang when u first plug the ipod in but only hang when i transfer song. this happens in both my pc and laptop... i didn't rebuild the laptops library.... I did also reJB my ipod few days ago. EDIT: in order to 'unhang' the itunes... i have to disconnect my device.