I purchased my 64 GB iPad air today. Any idea why I am getting an error message about not having enough space when trying to sync (restore) it? My iPad 3 syncs fine. This is saying I need to clear almost 4GB worth of stuff off of it. Does this iPad come with more crap in its hard drive? I don't understand why it isn't working. I have iOS 7 on both deices but I have less space available on my new iPad air.