Hi guys, I just bought a pre-owned macbook off of ebay. This is my second mac, so I'm somewhat familiar with them. Here's my problem: When I first booted it up, it never took me through the whole "new owner registration" screen that you would see on a brand new macbook, it just went straight to the desktop. I went in and changed the Admin name and info etc manually, but when the computer is shut down and booted back up, it has my name listed on the login screen, but that little tiny title above it that says "(Owner)'s Mac" still says the old owners name! Furthermore, when i access mac programs such as Front row, it still says his name also. So my question is, where do I go to change this? Do I need to go through the whole new owner registration screen manually, and if so, will I lose all of my work that's stored on my HD? Thanks in advance!