I found a G3-500 iMac in a stairwell at work today and I'd like to see if it still works. When I boot it up I get the ? icon as if the computer doesn't have a boot partition. I believe this iMac is capable of running OS X 10.4.11 but all I see on Apple's site is the update. Is there anywhere I can get the full 10.4 image or discs? Thank you.