My 1st generation iPhone isn't sinking to iTunes anymore. It correctly syncs my contacts, calendar, and adds appplicatiosn before it says "syncing iPhone" and it won't progress beyond this. I restored my jailbroken iPhone on a different computer, and then uninstalled and reinstalled iTunes on the laptop i always use to sync. It hasn't helped much. I finally got beyond the "syncing iPhone" step after waiting for 14 minutes. My phone finally tarted to sync all my music and videos, before freezing up about half way through. I waited ten minutes, and after it made no progress, I just quit. This keeps happening no matter what I do. Any have this problem or know what I can do to fix it?

Thanks

My iPhone is running 3.0
My Computer is running Windows XP