Selling my Mac Mini and have a question... I wiped the hard drive and after that it asked me to re-install OS. When I did that it asked me to log in to the app store to re-download the OS. I'm thinking I did that wrong and that I actually need to re-load the OS from the hard drive somewhere. Is that right? Just wondering if I need to wipe it again and reinstall the OS. It's at the setup screen (choose your country, language, etc). I just want to make sure once the person sets all of that up it's not going to be logged into my iTunes account. Thanks in advance!