Ubuntu - Dual Monitor support

How to get dual monitor support to work on my laptop on Ubuntu to get
multiple resolutions to work.

To make the second monitor goto the right of the LCD run:

xrandr --output VGA --right-of LVDS --auto

Hardware Setup:
Video Card: Intel Corporation Mobile 945GM/GMS, 943/940GML Express
Integrated Graphics Controller (rev 03)
Laptop LCD: 1440x900
External Monitor: 1280x1024

Make sure xorg.conf has this:
Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Modes "1440x900" "1280x1024"
Virtual 2720 1924
EndSubSection
EndSection

xorg.conf is in /etc/X11/

"Thank you" to Nikhil for making this work on my laptop

(This is for Ubuntu 7.10 - the Gutsy Gibbon.)