Ok, thanks.

The message it gives me is something like, "This startup disk will not work on this Macintosh model. Use the latest Installer to upgrade this disk for this model. System 7.1 does not work on this model; you need to find a newer version that does."

I already tried to download a free OS from Apple.com, (it was 7.5.3) but I think it had to be done from the computer in question, because it wouldn't let me put it on a CD. My Windows simply couldn't read those files.

I just checked 7.5.5 on Apple.com, but it only says upgrade. I'll try it anyway.

Thanks,

-Apostrophe