still can't get a decent display with intel 865 video card

["Robert P. J. Day" <rpjday mindspring com>]

  i'm still baffled as to how i can get a decent resolution and bit depth with
a newly-installed FC 1 system.

  i have a dell optiplex GX270, with a dell E772p monitor capable of 1024x768
and an intel 865 video card.  so far, in terms of display, i've been able to get

  1024x768 at 8bpp
  800x600 at 16bpp

naturally, i'd like 1024x768 at at least 16bpp, but every attempt to configure
for a more respectable resolution and bpp fails.  when i've tried, and looked
at the X diagnostics, among other things, i see

  "(EE) I810(0): No Video BIOS modes for chosen depth."

i've been into the BIOS and, regarding video, there's not a lot to play with:

  Primary Video Controller:  (either "Onboard" or "Auto")
  Onboard Video Buffer: (either 1 or 8 MB)

i've tried different combinations and nothing seems to work.  any thoughts?
i can't believe that a new system is incapable of something as basic as
1024x768 at 16bpp.  is there some trick to this video card that's not
obvious?  thanks.

rday