When I try to sync my ipod, itunes sometimes won't even recognize that I have connected my ipod. Then if it does, a message pops up saying "Unknown error, cannot sync Ipod", and itunes will continually say "verifying Ipod" at the top of Itunes, and then itunes will stop responding. I have been searching online to find the problem, but nothing worked. At this point I am merely trying to restore my ipod but can't do it because itunes freezes once the ipod is recognized or won't recognize my ipod atl all. I had this problem a month ago, and my computer at that time wasn't working well so I hoped that was the problem (some threads online said it could be a hardware issue not a problem with my Ipod). However two weeks ago my computer crashed, so I had to get a new hard drive, re-install windows, and then recently downloaded itunes 9 hoping with a completely wiped out computer it would work. It still won't sync, or even let me restore it. The Ipod itself has been working ok, freezing sometimes though. Also it might be important to note that I have an Iphone and that syncs fine, both before and after the crash. Anyone have any ideas as to what the issue and how I can either sync or restore? Any help is much appreciated.