Well my ipod closed because it was out of battery's, i thought i could do DFU and re jailbreak it, but for some reason it wouldn't work. I tried putting it into dfu mode on my bros comp and then jail breaking on mine, but my ipod wouldn't connect to his comp either. I tried everything to restore it, dfu works for 5 seconds then it would give that error sign "Unknown Usb Device" I have everything, mobileme thing, itunes 8.2, bonjour, quicktime. I dont know whats happening, my usb cord is fine, but USB mode doesnt work. it use too. Guys please help, i also tried pressing the home button and connecting it to the comp. SO PLEASE HELP. I DO not want to return it.