Alright, I've gotten grftest1.c and grftest.c from Taras' site.  Compiled
and attempted to run them, grftest1 first (per readme's instructions) while
running under his "GENERIC 961024" kernel (which boots just fine, I might
add).  Does the *exact* same thing as when I try to run the latest color X
server; that is, all video signal dies and the machine freezes.  I've run
his MacOS "video_data" execs but don't understand any of the stuff in the
ROM dump output file.

I find it hard to believe (however, it's the only explanation for this
problem that I can come up with) that such a plain-vanilla Apple product as
my video card is incompatible; surely there must be at least one other
MacBSD user out there with the same one (to note, it's an "Apple Macintosh
Display Card 8 * 24" and I don't remember the exact year, but it's pretty
old; I was still running system 6.0.3 when I got it, if memory serves).
Machine is a IIcx, by the way; monitor is the standard 13" 640x480 Apple
RGB that came with it.

Can anyone offer any insight, theories, anything?  :)

   ____  _             __     __   "Great spirits have always encountered
  / __ \(_)__  ___ ___/ /__ _/ /__   violent opposition from mediocre
 / /_/ / / _ \(_-</ _  / _ `/ / -_)   minds."
/_____/_/_//_/___/\_/_/\_/_/_/\__/               -- A. Einstein