I have installed ubuntu on my compaq notebook which is used intel 945 chipset. Compiz already installed when installed ubuntu but there is some problem when running compiz. After googling i found the answer to make compiz running normally.

Here is the step:
1. sudo apt-get update
2. I suggest to use apt-get than downloaded one by one cause of the dependency
apt-get install compiz compiz-core compiz-gnome compiz-fusion-bcop compiz-fusion-plugins-main compiz-fusion-plugins-extra compizconfig-settings-manager
3. Edit xorg.conf but u have to backup it first before make modification
- sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf_backup
- nano /etc/X11/xorg.conf

* Add this to xorg.conf “Screen” section
# Enable 32-bit ARGB GLX Visuals
Option “AddARGBGLXVisuals” “True”

* Add this to xorg.conf “Device” section
Option “TripleBuffer” “true”

4. Restart X with ctrl+alt+backspace