ipod touch won't restore-error 1603

I jailbroke my touch and it won't sync with itunes. My ipod worked fine until I plugged it in and Itunes knew it was there but didn't say the name, it just said Ipod and the other info said N/A. Itunes said it was in recovery mode and I needed to restore it but it wouldn't work. I clicked restore and update and updated my ipod software. I also got the latest itunes, and it still won't restore. I get error 1603 and I turned off internet security programs but get the same error every time. Whenever I turn on my ipod it shows a usb cable and itunes, and it won't play music or anything.