FC5: Disabling screen blanker?

[Jim Lowman <jmlowman sbcglobal net>]

First, thanks to everyone who answered my question on
screensavers for FC5.  They are working fine now.

Now it seems that some power-saving feature is
engaging after 10 minutes or so, and blanking the
screen.  I've looked all over for ways to disable this
feature without success, including perusing the _FC4
Unleashed_ book.

Can someone help with this one?

Thanks in advance...Jim