I'm a long-time windows user and I just purchased my first mac, a used 500 mHz iBook from one of my coworkers. Woohoo! I managed to successfully create a new user account for myself (although I haven't deleted his account yet just in case), but there is one thing I can't figure out how to change. When I boot the computer and get to the OS X boot screen, it still says "[Previous Owner]'s Computer" underneath the Apple logo. How can I change this so it shows [Current Owner]'s Computer" instead? I'm hoping that he can get me a copy of his install disks so I can just do a clean install, but that could take a while. Any suggestions would be appreciated. Thanks!