Hi,
Saw your 11/7 post to the list... a little late. If i may ask what
patches do you have installed to xsrc/......./os-support/bsd/bsd_axp.c
/bsd/bsd_video.c and xsrc/..../programs/Xserver/Makefile.
any other patches applied? In 4.0.2 PLT errors were controlled with
/Xserver/Makefile change @line ~218 change to:
EXTRA_LOAD_FLAGS = -W1, -Bstatic
in addition 'glint' driver needs Option "ShadowFB" in XF86Config file.
with these present XFree86-4.0.2 runs with :
mga driver...Matrox bds to G200.
glint driver....Elsa, 3-Dlabs(410T) and Diamond Fire1000 -permedia2 chip
bds.
i have tested it with the above vga bds and it is very stable.
I recently built video programs from pkgsrc..'mplayer' and 'ogle'
which show the limitations of 'no accel' server. Both run however.
I just got a 600a, converted it to scsi and running current, a screen
shot is at http://www.caseydoodle.com/netbsd.png 
Look forwarded to hearing from you.
Best -Mel