Mine

:: cat /etc/X11/xorg.conf
Section "ServerLayout"
        Identifier     "Simple Layout"
        Screen      0  "aticonfig-Screen[0]" 0 0
        InputDevice    "Mouse1" "CorePointer"
        InputDevice    "Keyboard1" "CoreKeyboard"
EndSection

Section "Files"
        RgbPath      "/usr/X11R6/lib/X11/rgb"
        FontPath     "/usr/X11R6/lib/X11/fonts/local/"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc/"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/Type1/"
#       FontPath     "/usr/X11R6/lib/X11/fonts/CID/"
        FontPath     "/usr/X11R6/lib/X11/fonts/Speedo/"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/"
        FontPath     "/usr/X11R6/lib/X11/fonts/cyrillic/"
EndSection

Section "Module"
        Load  "dbe"     # Double buffer extension
        SubSection "extmod"
                Option      "omit xfree86-dga"   # don't initialise the DGA exte
        EndSubSection
        Load  "type1"
        Load  "freetype"
    #Load        "speedo"
        Load  "glx"
        Load  "dri"
EndSection

Section "InputDevice"
        Identifier  "Keyboard1"
        Driver      "kbd"
EndSection

Section "InputDevice"
        Identifier  "Mouse1"
        Driver      "mouse"
        Option      "Protocol" "PS/2"
        Option      "Device" "/dev/mouse"
EndSection

Section "Monitor"
        Identifier   "My Monitor"
        HorizSync 30.0-72.0
#       HorizSync    31.5 - 40.0
        VertRefresh  50.0 - 160.0
EndSection

Section "Monitor"
        Identifier   "aticonfig-Monitor[0]"
        Option      "VendorName" "ATI Proprietary Driver"
        Option      "ModelName" "Generic Autodetecting Monitor"
        Option      "DPMS" "true"
EndSection

Section "Device"
        VideoRam    131072
    # Insert Clocks lines here if appropriate
        Identifier  "VESA Framebuffer"
        Driver      "radeon"
        Option "AGPMode" "8"
        Option "BusType" "agp"
        Option "MonitorLayout" "CRT"
        Option      "CloneHSync" "30.0-72.0"
        Option      "CloneVRefresh" "50.0-160.0"
        BusID       "PCI:1:0:0"
#       Option "MetaModes" "1024x768"
EndSection

Section "Device"
        Identifier  "aticonfig-Device[0]"
        Driver      "radeon"
        Option "AGPMode" "4"
        Option "BusType" "agp"
        Option      "CloneHSync" "30.0-72.0"
        Option      "CloneVRefresh" "50.0-160.0"
        BusID       "PCI:1:0:0"
#        Option "MonitorLayout" "CRT"
#        Option "MetaModes" "1024x768-1024x768"

EndSection

Section "Screen"
        Identifier "Screen 1"
        Device     "VESA Framebuffer"
        Monitor    "My Monitor"
        DefaultDepth     24
        SubSection "Display"
                Depth     8
                Modes    "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth     16
                Modes    "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth     24
                Modes    "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth     32
                Modes    "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

Section "Screen"
        Identifier "aticonfig-Screen[0]"
        Device     "aticonfig-Device[0]"
        Monitor    "aticonfig-Monitor[0]"
        DefaultDepth     16
        SubSection "Display"
                Viewport   0 0
                Depth     16
        EndSubSection
EndSection