Mine

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf(5) manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	Fontpath	"/usr/share/fonts/X11/misc"
	Fontpath	"/usr/share/fonts/X11/cyrillic"
	Fontpath	"/usr/share/fonts/X11/100dpi/:unscaled"
	Fontpath	"/usr/share/fonts/X11/75dpi/:unscaled"
	Fontpath	"/usr/share/fonts/X11/Type1"
	Fontpath	"/usr/share/fonts/X11/100dpi"
	Fontpath	"/usr/share/fonts/X11/75dpi"
	# path to defoma fonts
	Fontpath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load		"i2c"
	Load		"bitmap"
	Load		"ddc"
	Load		"extmod"
	Load		"freetype"
	Load		"int10"
	Load		"vbe"
	Load		"glx"
	Load		"v4l"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"	"/dev/input/mice"
	Option		"Protocol"	"ImPS/2"
	Option		"ZAxisMapping"	"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"stylus"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"stylus"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"eraser"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"eraser"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"cursor"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"cursor"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"nVidia Corporation NV40 [GeForce 6800]"
	Boardname	"nv"
	Busid		"PCI:1:0:0"
	Driver		"nvidia"
	Option		"NoLogo"
	Screen	0
EndSection

Section "Monitor"
	Identifier	"ADI P750"
	Vendorname	"ADI"
	Modelname	"P750"
	Horizsync	30-97
	Vertrefresh	50-150
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"nVidia Corporation NV40 [GeForce 6800]"
	Monitor		"ADI P750"
	Defaultdepth	24
	SubSection "Display"
		Depth	24
		Modes	"1024x768" "800x600" "640x480"		
                Option  "AddARGBGLXVisuals"  "true"
	EndSubSection
	SubSection "Display"
		Depth	16
		Modes	"1024x768" "800x600" "640x480"		
	EndSubSection
	SubSection "Display"
		Depth	8
		Modes	"1024x768" "800x600" "640x480"		
	EndSubSection
	SubSection "Display"
		Depth	4
		Modes	"1024x768" "800x600" "640x480"		
	EndSubSection
	SubSection "Display"
		Depth	2
		Modes	"1024x768" "800x600" "640x480"		
	EndSubSection
	SubSection "Display"
		Depth	1
		Modes	"1024x768" "800x600" "640x480"		
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
  screen 0 "Default Screen" 0 0
	Inputdevice	"Generic Keyboard"
	Inputdevice	"Configured Mouse"
	Inputdevice	"stylus"	"SendCoreEvents"
	Inputdevice	"cursor"	"SendCoreEvents"
	Inputdevice	"eraser"	"SendCoreEvents"
EndSection

Section "DRI"
	Mode	0666
EndSection
Section "device" #    
	Identifier	"device1"
	Boardname	"nv"
	Busid		"PCI:1:0:0"
	Driver		"nvidia"
	Screen	1
EndSection
Section "screen" #    
	Identifier	"screen1"
	Device		"device1"
	Defaultdepth	24
	Monitor		"monitor1"
	SubSection "Display"
		Depth	24
		Modes		"640x480@60"
	EndSubSection
EndSection
Section "monitor" #    
	Identifier	"monitor1"
	Vendorname	"Plug 'n' Play"
	Modelname	"Plug 'n' Play"
  modeline  "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
	Gamma	1.0
EndSection
Section "ServerFlags"
EndSection