My iTunes account is registered on two separate computers. My computer died so I had to register a second computer. Now, when I go to update/backup my iPad, I get the messages listed below.... "The iPad "fake name's iPad" is synced with another iTunes library. Do you want to erase this iPad and sync with this iTunes library"? The second message is.... "iTunes has found purchased items on the iPad "fake name's iPad that are not present in your iTunes library. Do you want to transfer these items from this iPad to your iTunes library" ? Can anyone tell me what these message mean in plain English? Thanks.