Resolution setting for XDM with and LCD

["N. Ross" <cognitiveflux@gmail.com>]

Hi,

I installed Woody and have a problem when I start X.  During the 
installation I specified that I use an LCD monitor with a native 
resolution of 1280x1024, but when I load twm or fvwm, the display is set 
to 1280x960.  In addition, the desktop image appears as a series of 
alternating grey/dark grey horizontal lines (is it supposed to be a 
solid color?).  I tried using CTRL+ALT+{+,-} with no effect.  Anyhow, I 
just want to set the resolution to 1280x1024.

Here is the "Monitor" and "Screen" section in my /etc/X11/XF86Config-4 
(I haven't changed it since the install):

Section "Monitor"
       Identifier      "Generic Monitor"
       HorizSync       30-60
       VertRefresh     50-75
       Option          "DPMS"
EndSection

Section "Screen"
       Identifier      "Default Screen"
       Device          "Generic Video Card"
       Monitor         "Generic Monitor"
       DefaultDepth    24
       SubSection "Display"
               Depth           1
               Modes           "1280x1024"
       EndSubSection
       SubSection "Display"
               Depth           4
               Modes           "1280x1024"
       EndSubSection
       SubSection "Display"
               Depth           8
               Modes           "1280x1024"
       EndSubSection
       SubSection "Display"
               Depth           15
               Modes           "1280x1024"
       EndSubSection
       SubSection "Display"
               Depth           16
               Modes           "1280x1024"
       EndSubSection
       SubSection "Display"
               Depth           24
               Modes           "1280x1024"
       EndSubSection
EndSection

Last question -- how can I use an image for a desktop? (I'm guessing 
this a painfully simple answer)

Thanks,

NR