I have just gotten a Mac Mini A1283 (1 TB) from someone and I want to reformat it. It came installed with Mac OS X 10.6 Snow Leopard with it. I've tried playing around with it but it keeps prompting me to enter a username and password to which I do not know. Is it possible to access some sort of recovery partion and reinstall snow leopard from there? It has no optical drive as well. Any thoughts appreciated!