So I ran through QuickPwn, followed the directions for DFU mode. QuickPwn hung for a few hours at the "QuickPwn is jailbreaking your phone..." screen with no advancement at all in the progress bar. So at this point I just want out of the whole mess, so I disconnect the iPhone from the system. I can get it to jump into DFU mode, as iTunes displays a "Waiting for iPod..." message. Then I get the attached error message. I've tried doing what iTunes suggests, of course, to absolutely no avail. I've seen the threads now on 10.5.6/unibody MacBooks (both of which I have, wonderful) but I'm not interested in jailbreaking anymore. I just want to restore to default software, no jailbreak. Where do I go from here?