Hey everyone! I had to restore my iPod to factory settings and stock firmware 2.2.1 and now I am trying to restore to my jailbroken, untethered firmware but I keep getting errors such as "The iPod 'iPod' could not be restored. An unknown error occurred (1600)." I have tried with the Untetherizer tool but that does not work either. It worked perfectly the last time when I tried it with the firmware I got from a thread here last night but I think was deleted. Now it's not accepting any of my firmware. Any solutions?! Thanks!