hey, i traded one of my friends my ipod 2nd gen for his mp4 player. we traded then traded back. but when i got it it couldnt be reconized by the computer, when i stuck it in my comput a window pops up saying usb device not reconized. and when i connect my ipod to my comp it is able to play and stuff but it doesnt charge and the light isnt on. but it does not connect to my computer becuz it says usb device not reconized. i tried resetting it, it did not work it just did the same thing. I tryed putting the ipod charger in different usb port, doesn't work, tryed using different charger, doesnt work. can anyone help out?