Mine

Section "Device"
    Identifier  "Nvidia"
    Driver      "nvidia"
    VendorName  "nVidia Corporation"
    BoardName   "GeForce 8800 GTX"
    VideoRam    786432 
    BusID	"PCI:5:0:0"
    Option	"NvAGP"		"0"
    Option	"SLI"		"0" 
#    Option	"NoLogo"	"False"
    Option "DynamicTwinView"	"0"   # set to this to get proper refresh rate with dual monitors
    Option	"RenderAccel"	"True"
    Option      "TripleBuffer"	"True"
    Option      "NoFlip"	"True"
    Option "AllowGLXWithComposite" "True"
    Option "AddARGBGLXVisuals"  "True"
    Option	"Coolbits"	"1"
    Option	"BackingStore"	"True"
    Option	"UseEdidDpi"	"FALSE"
    Option	"DPI"		"96 x 96"
    Option	"UseEvents"	"False"
    Option	"DamageEvents"	"True"

EndSection

Section	"Extensions"
    Option	"Composite"	"Enable"

EndSection


Section "Screen"
    Identifier  "Screen 1"
    Device      "Nvidia"
    Monitor     "DELL"
    DefaultDepth 24
    Option "ExactModeTimingsDVI" "1"
    Option "AddARGBGLXVisuals"  "True"

    Subsection "Display"
        Depth    8
       Modes	 "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth	 16
        Modes	 "1680x1050" "1280x1024" "1024x768" "800x600"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth    24
	Modes	 "1680x1050" "1280x1024" "1152x864" "1024x768" "800x600"
        ViewPort    0 0
    EndSubsection
EndSection