Someone

   1.
      Section "Monitor"
   2.
              Identifier      "Generic Monitor"
   3.
              Option    "DPMS"
   4.
              HorizSync       30-80
   5.
              VertRefresh     50-75
   6.
      EndSection
   7.
       
   8.
      Section "Screen"
   9.
              Identifier      "Default Screen"
  10.
              Device    "NVIDIA Corporation NV17 [GeForce4 420 Mac 32M/GeForce 440 Go 64M]"
  11.
              Monitor  "Generic Monitor"
  12.
              DefaultDepth    24
  13.
              SubSection "Display"
  14.
                      Depth      1
  15.
                      Modes      "1024x768"
  16.
              EndSubSection
  17.
              SubSection "Display"
  18.
                      Depth      4
  19.
                      Modes      "1024x768"
  20.
              EndSubSection
  21.
              SubSection "Display"
  22.
                      Depth      8
  23.
                      Modes      "1024x768"
  24.
              EndSubSection
  25.
              SubSection "Display"
  26.
                      Depth      15
  27.
                      Modes      "1024x768"
  28.
              EndSubSection
  29.
              SubSection "Display"
  30.
                      Depth      16
  31.
                      Modes      "1024x768"
  32.
              EndSubSection
  33.
              SubSection "Display"
  34.
                      Depth      24
  35.
                      Modes      "1440x900"
  36.
              EndSubSection
  37.
      EndSection