I am a Windows Server guy trying to stay afloat on this Linux installation I am doing so please bear with me. I have installed RHEL 5 and installed the updated NVIDIA 256.53 certified driver. Upon rebooting everything was great. I got to the X server login and entered my user name and password. The very next thing I see is "Out of Range" error on my monitor. I know that I needed to verify that my xorg.conf file had the proper refresh rates specified in it for my monitor, which I have done. Not sure what the issue is. Below are my HW details as well as excerpt from "Screen" section of my config file.

ASUS vh236 23" Wide screen Monitor via VGA cable
Resolution of monitor is set to 1920x1080, 67KZ, 60 Hz (I obtained this via my monitor menu buttons right before I hit enter to login)

Excerpt from xorg.conf (NOTE: I tried with and without the specified monitor resolution modes)
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 88.0
VertRefresh 43.0 - 80.0
Option "DPMS"
EndSection


Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1920x1080" "1024x768" "800x600"
EndSubSection

Welcome to the Linux World.

Please post your whole xorg.conf, your xorg.0.log and what graphics-hardware you are using.

See contents below. I'm using NVIDIA GeForce 7025/nForce 630a

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 88.0
VertRefresh 43.0 - 80.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1920x1080" "1024x768" "800x600"
EndSubSection
EndSection

Your xorg.conf looks OK to me, only thing I would try is to set VertRefresh 43.0 - 60.0 instead of 80.0 but I don't know if that works. There seem to be issues with the Geforce 7025/7050 onboard cards, sorry that I can't help more.