after messing up my first attempt at 1.1.3 jailbreaking, i got myself to some version of 1.1.3 but i want to get back to 1.1.1 to start it all over. the only problem is that my itunes gives me an error no matter what firmware i try and use. 1.1.1 or 1.1.2 or even 1.1.3. it will show "Preparing iPod for restore..." and my iPod shows the white Aple logo with the spinning wheel at the bottom of the screen but then i get "The iPod "iPod" could not be restored. An unknown error occurred (1604)." Any help out there?