I've found three CDs: -iMac Software Install -iMac Software Restore -Mac OS9 (says to the side: Mac OS 9.1 Update CD) This old iMac is currently running OS X 10.3, and I'd like to return it to OS 8 or 9, since it's obviously past its prime, and I've got a lot of old games for it to run. I've recently (today) switched out the 40GB HDD I had inside it for a 20GB that was in a newer "Dalmatian" iMac, that my parents use for email. That was the only stipulation of me taking this old one off to my dorm in September. Well, the Dalmatian boots fine with its switched drive, but the BB booted once, I turned it off to try to hold C and boot off the iMac Install CD, and now it won't go past the grey OS X apple on a white background screen. (anyone know how to fix this?) Assuming I get it to boot again (I've unplugged it, took the install CD out, and rebooted, still stuck on that same screen), is there a way to wipe OS X off of it without the install CD? So I can basically have it blank like when it first came here in 1998? I really want this to work, and I'm getting impatient! Please help! (just for fun...) My two iMacs; on the left: circa 1998, Bondi Blue G3 iMac, 233MHz 320MB memory. on the right: circa 2006, 20" iMac Intel Core Duo, 2GHz 2GB RAM.