I have the iMac Software Install disc, I assume it has OS9 on it.. (if it doesn't I'll look again and find it, but anyway..) Been using this iMac (well, my parents have!) for a back-up back-up computer, mostly for email. It has OSX on it (what a feat! 233Mhz!), but since I have loads of OS9 games, I wanted to wipe it clean and start fresh, so I can take it to my dorm for some old school fun. Thing is, I've never done this before. How do I complete erase the HDD inside the iMac, to restore it to its factory defaults? Any help is appreciated, I don't think this will be too hard, just want to do it right.