i just got this one off my buddy, and i hooked it up to my computer and restored it so i could put all my shit on there. the shit is all fucked up though, 9 tiems out of 10, as soon as I hook it up iTunes freezes up, and as soon as I unplug the ipod, iTunes is cool again. Now, The other 1 out of 10 times i hook it up, it tries to automatically update it with all the songs in my library, which would be cool if A. it actually put them on there without freezing halfway through or if B. i even wanted my whole library on there. I have a lot of shit in my library thats garbage. I want to just hook it up and put shit on there manually. Also, theres a little lock symbol next to it and it wouldn't let me add music when i stopped it from automatically updating. how do i fix this?