how to drive infocus projector from hi-res dell laptop running FC4?

[Robert P. J. Day]

  i want to give a short demo off of my dell inspiron 9100 (LCD
1920x1200 resolution), so i hooked up its video port to an infocus
projector and, not surprisingly, the native resolution of the laptop
is overwhelming the projector (you can sort of see the screen image
but it's not pretty).

  i don't even need the X session -- doing the demo from a simple
character virtual console would be just fine, but that also is sort of
mangled -- recognizable but mangled.

  is there a way to, i guess, step down the resolution being sent to
the projector?  thanks.

rday

p.s.  like most inspirons, this one has the "Fn" and F8/"CRT-LCD" keys
for signal switching.