ok........my ipod was bought over the internet on ebay and it keeps freezing up. the first day i got it, it froze and now it keeps on and the only thing i can do is wait until it's battery runs dead and then charge it but then it freezes all over again!!! i don't know what to do with it......it says that it's playing a song when all it's doing is sounding like a cd is continually skipping. what can i do to fix it or stop it from freezing???!!! pleeeeeezzzzz HELP!!!!!