[newbie] Stopping auto-boot to KDE?

[Valheru]

Hello all,
I am getting a font error when booting into KDE which is set for auto-load. How
can I stop this? All my monitor does is reset itself.  Is there a command once
I'm at the login: screen to stop the auto-load? I have about 3 seconds before
KDE begins to load. BTW, Yes I've searched HOW-TO's on this with no luck. :(
Thanks,
Valheru