Getting out of X

[Jeff Binder]

I have been trying to get X working on my SuperMac c500 (an old world
PowerMac), and I was having trouble getting the ADB mouse working. The
problem is, the settings I have now cause X to crash at startup, leaving
just a white screen. Worse, X automatically launches when I start the
computer up. How do I stop X from starting up so I can get to the
command line?