Configure LCD Monitor on FE

[CNLiberal]

I'm running MythBuntu 8.04 x86 with an nVidia 5200 AGP card using DVI out to an Acer 22" LCD. nVidia's config utility isn't giving me the option for 1680x1050 (LCD's native res). I've tried configuring the xorg.conf by hand, but it doesn't seem to be working. I'm including my xorg.conf.

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 1.0 (buildd@vernadsky) Thu Jun 5 09:26:53 UTC 2008


Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection

Section "Module"
Load "glx"
EndSection

Section "ServerFlags"
Option "Xinerama" "0"
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 "Monitor"
Identifier "Generic Monitor"
# Option "DPMS"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Acer X223W"
HorizSync 31.0 - 84.0
VertRefresh 56.0 - 77.0
EndSection

Section "Device"

# Option "ConnectedMonitor" "TV"
# Option "TVOutFormat" "SVIDEO"
# Option "TVStandard" "NTSC-M"
Identifier "Generic Video Card"
Driver "nvidia"
Option "DPI" "100x100"
Option "UseEvents" "1"
Option "AddARGBVisuals" "1"
Option "AddARGBGLXVisuals" "1"
Option "NoLogo" "1"
#Option "UseDisplayDevice" "TV"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce FX 5200"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Generic Video Card"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "nvidia-auto-select" "1920x1080" "1680x1050" "1280x720" "1024x768" "720x480" "800x600" "640x480"
EndSubSection
EndSection

Section "Screen"

# Removed Option "metamodes" "800x600 +0+0; 720x480 +0+0; 640x480 +0+0"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "DFP: 1680x1050 +0+0"
EndSection

Any help would be VERY much appreciated. Thanks!

Jim