Running Ubuntu 8.04 on Intel 845 chipset board

Yesterday , I installed Ubuntu 8.04 on my three year old PC.
Pentium 4 2.8 GHz
Gigabyte 8I845GVM-RZ
384 MB DDR
On-board graphics
It took some time to configure my monitor ( malfunctioning plug and play ).
The contents of xorg.conf follows,

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# xorg.conf (X.Org 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 "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection

Section "Device"
Identifier "Configured Video Device"
Boardname "vesa"
Busid "PCI:0:2:0"
Driver "i810"
Screen 0
EndSection

Section "Monitor"
Identifier "Configured Monitor"
Vendorname "Generic CRT Display"
Modelname "Monitor 1024x768"
Horizsync 30.0-70.0
Vertrefresh 50.0-160.0


Gamma 1.0
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
Defaultdepth 24
SubSection "Display"
Depth 24
Virtual 1024 768
Modes "1024x768@85"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
EndSection
Section "Module"
Load "glx"
Load "GLcore"
Load "v4l"
EndSection
Section "ServerFlags"
EndSection

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