I just got the new Macbook Air (June 2013), and I need help resetting the profile. When I set up the mac, I entered in someone else's Apple ID to download an app quickly. Now though, for example when I create a new mail account, calendar event, or FaceTime someone, the OS displays information about the Apple ID that I set up the computer with. Is there any way to reset the information without having to reset the user account. My computer runs OS X 10.8.4. Thanks for all the help