nVidia Widescreen no longer working

[Simon]

I managed to get the widescreen option working by selecting System -> 
Administration -> Screens and Graphics and selecting the monitor model, 
restarting X and then selecting the monitor resolution to 1280x800.  I 
also commented out the second screen section in the xorg.conf file. 

The issue I'm now having is that on every restart the login window and 
my desktop default back to a poor 800x600 resolution.  I can reset this 
to 1280x800 by selecting System -> Administration -> Screens and 
Graphics but is there a way to make the default resolution remain at 
1280x800?

Below is my xorg.conf file that works with 1280x800.

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister at builder26)  Wed Sep 12 
14:29:17 PDT 2007

# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by failsafeDexconf, using
# values from the debconf database and some overrides to use vesa mode.
#
# You should use dexconf or another such tool for creating a "real" 
xorg.conf
# For example:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "ServerLayout"
    Identifier    "Default Layout"
  screen 0 "Default Screen" 0 0
    Inputdevice    "Generic Keyboard"
    Inputdevice    "Configured Mouse"
    Inputdevice    "Synaptics Touchpad"
EndSection

Section "Files"
EndSection

Section "Module"
    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"
    Identifier    "Synaptics Touchpad"
    Driver        "synaptics"
    Option        "SendCoreEvents"    "true"
    Option        "Device"    "/dev/psaux"
    Option        "Protocol"    "auto-dev"
    Option        "HorizScrollDelta"    "0"
EndSection

Section "Monitor"
    Identifier    "Failsafe Monitor"
    Vendorname    "Generic LCD Display"
    Modelname    "LCD Panel 1280x800"
    Horizsync    31.5-50.0
    Vertrefresh    56.0 - 65.0
  modeline  "800x600 at 56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
  modeline  "800x600 at 60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
  modeline  "1280x768 at 60" 80.14 1280 1344 1480 1680 768 769 772 795 
-hsync +vsync
  modeline  "1280x720 at 60" 74.48 1280 1336 1472 1664 720 721 724 746 
-hsync +vsync
  modeline  "1280x800 at 60" 83.46 1280 1344 1480 1680 800 801 804 828 
-hsync +vsync
    Gamma    1.0
EndSection

Section "Monitor"
    Identifier    "monitor1"
    Vendorname    "Plug 'n' Play"
    Modelname    "Plug 'n' Play"
  modeline  "640x480 at 60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
    Gamma    1.0
EndSection

Section "Device"
    Identifier    "Failsafe Device"
    Boardname    "vesa"
    Busid        "PCI:0:5:0"
    Driver        "nvidia"
    Screen    0
EndSection

Section "Device"
    Identifier    "device1"
    Boardname    "vesa"
    Busid        "PCI:0:5:0"
    Driver        "nvidia"
    Screen    1
EndSection

Section "Screen"
    Identifier    "Default Screen"
    Device        "Failsafe Device"
    Monitor        "Failsafe Monitor"
    Defaultdepth    24
    Option        "NoLogo"    "True"
    SubSection "Display"
        Depth    24
        Virtual    1280    800
        Modes        "1280x800 at 60"    "1280x720 at 60"    "1280x768 at 60"    
"800x600 at 60"    "800x600 at 56"
    EndSubSection
EndSection

# Section "Screen"

#
#    Identifier    "screen1"
#    Device        "device1"
#    Monitor        "monitor1"
#    Defaultdepth    24
#    SubSection "Display"
#        Depth    24
#        Modes        "640x480 at 60"
#    EndSubSection
# EndSection

Section "ServerFlags"
EndSection
Section "device" #
    Identifier    "device2"
    Boardname    "vesa"
    Busid        "PCI:0:5:0"
    Driver        "nvidia"
    Screen    1
EndSection
Section "screen" #
    Identifier    "screen1"
    Device        "device2"
    Defaultdepth    24
    Monitor        "monitor2"
EndSection
Section "monitor" #
    Identifier    "monitor2"
    Gamma    1.0
EndSection