>How the heck do I get both the bwtwo and cg3 to actually work?

My drivers rely on the PROM to initialize the monitor settings.
What you need to do is map in the registers (see btreg.h, unless
I made that file since then), dump out the values set by the
PROM, and load those values into the `non-console' monitors.
The registers need only be loaded once, e.g., by a user program
while reading /etc/rc*.

One of these days I have to finish the program that loads up
register values... :-)

Chris