I originally synced my iPad with an older iMac. Now that I have a new iMac, I'd like to sync with it. However, when I attempt to do so, I receive a scary warning saying that in order to sync, I need to erase the contents of my iPad and then restore it with the contents of the iTunes library on my new iMac. I've moved over all of my media files, but I'm concerned about the saves from my games. How can I go about syncing with my new computer and not lose my game progress?