Xorg 1.5.3, nvidia twinview won't use samsung monitor

Question

I've had a dual head setup going for sometime with no issues, but just got a
new monitor that I can not get working with X. I'm currently using nvida
drivers version 180.22
I have a laptop docked with the laptop screen and a second monitor as my dual head config, it's been great, but something isn't working right with this new monitor. The monitor is a samsung SyncMaster 2493hm, and I've read some things about the Samsung monitors sending incorrect edid info so that may be the issue, but I have no idea how to fix that. The behavior is odd because it appears that x server is spanning both screens as if twinview is correctly setup, but the Samsung monitor never comes on.
I have verified that the monitor works, and works in a dual head configuration both on windows and other linux distro's. My friend has the exact same laptop/monitor setup under ubuntu and it works perfectly for him. Even using HIS xorg.conf didn't work so I am really at a loss.
any help is greatly appreciated.
some basic info:
X.Org X Server 1.5.3
Release Date: 5 November 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.27-ARCH x86_64
Current Operating System: Linux megatron 2.6.28-ARCH #1 SMP PREEMPT Sun Feb 8 09:47:26 UTC 2009 x86_64
Build Date: 17 December 2008 10:46:49PM
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
lspci output for video card:
01:00.0 VGA compatible controller: nVidia Corporation Quadro NVS 140M (rev a1)
my xorg.conf:
Section "ServerLayout"
Identifier "X.org Twinview"
Screen "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
InputDevice "SynapticsTouchpad" "SendCoreEvents"
EndSection
Section "ServerFlags"
Option "DontZap" "On"
Option "DontZoom" "On"
#Option "Xinerama" "On"
# Option "AutoAddDevices" "False"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/artwiz-fonts/"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/TTF/"
FontPath "/usr/share/fonts/local/"
FontPath "/usr/share/fonts/100dpi:unscaled"
FontPath "/usr/share/fonts/75dpi:unscaled"
EndSection
Section "Module"
Load "xtrap"
Load "glx"
Load "synaptics"
Load "extmod"
Load "dbe"
Load "freetype"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
#Driver "vmmouse" # for vmware
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
Option "SendCoreEvents"
EndSection
Section "InputDevice" # actually an ALPS
Identifier "SynapticsTouchpad"
Option "Device" "/dev/input/mouse3"
Driver "synaptics"
Option "AlwaysCore" "true"
#Option "Device" "/dev/input/mice"
Option "Protocol" "auto-dev"
Option "SHMConfig" "on"
Option "LeftEdge" "130"
Option "RightEdge" "840"
Option "TopEdge" "130"
Option "BottomEdge" "640"
Option "FingerLow" "7"
Option "FingerHigh" "8"
Option "MaxTapTime" "180"
Option "MinTapTime" "110"
Option "ClickTime" "0"
Option "EmulateMidButtonTime" "75"
Option "VertScrollDelta" "20"
Option "HorizScrollDelta" "20"
Option "MinSpeed" "0.40"
Option "MaxSpeed" "0.65"
Option "AccelFactor" "0.0020"
Option "CircularScrolling" "1"
Option "CircScrollDelta" "0.1"
Option "CircScrollTrigger" "3"
#Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
HorizSync 28.0 - 64.0
VertRefresh 43.0 - 60.0
Option "DPMS"
EndSection
Section "Device"
# Force Powermizer to a certain level at all times:
# 0x1 = high
# 0x2 = mid
# 0x3 = low
# let GPU set perf level by temp
#Option "RegistryDwords" "PerfLevelSrc=0x3333" # new 8/12, may conflict with above.
# Disable vblank interrupts
Identifier "NvidiaCard"
Driver "nvidia"
VendorName "nVidia Corporation"
BoardName "G72M [Quadro NVS 110M/GeForce Go 7300]"
Option "RenderAccel" "True"
EndSection
Section "Screen"
#Option "TVOutFormat" "COMPOSITE"
Identifier "Screen0"
Device "NvidiaCard"
Monitor "Monitor0"
DefaultDepth 24
Option "UseEdidFreqs" "True"
Option "TwinView"
Option "MetaModes" "nvidia-auto-select,nvidia-auto-select"
Option "TwinViewOrientation" "LeftOf"
#Option "AddARGBVisuals" "True"
Option "AddARGBGLXVisuals" "True"
Option "NvAGP" "1"
Option "HWCursor" "Off"
#Option "ConnectedMonitor" "DFP" #"DFP" for DVI connections only, otherwise "CRT"
Option "TripleBuffer" "True"
Option "DamageEvents" "True"
Option "BackingStore" "True"
#Option "PixmapCacheSize" "300000"
Option "OnDemandVBlankInterrupts" "True"
#Option "TVStandard" "NTSC-M"
Option "RegistryDwords" "PowerMizerLevelAC=0x2 # new 8/12"
SubSection "Display"
Depth 24
Modes "nvidia-auto-select"
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "Disable"
EndSection

Answer 1

I have a Samsung 245BW 24 inch monitor (gorgeous output by the way) that works perfectly. This is my xorg.conf. A slighly different version worked perfectly when I had two of these monitors.
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Samsung"
ModelName "Samsung SyncMaster"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8800 GT"
Option "DPI" "96 x 96"
Option "UseEdidDpi" "false"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection