I’ve loaded compiz fusion on several different machines (using Ubuntu feisty fawn) and I noticed the default repositories and restricted drivers don’t work on some machines. Here is a how-to for you if you have been running into some problems (such as the window boarders disappear when you enable compiz fusion).

1) Make a backup of your xorg.conf file.

2) Completely uninstall compiz fusion through the Synaptic Manager. Just run a search for ‘compiz’. Also, do a search for ‘desktop effects’ and uninstall it as well.

3) If you have an Nvidia card and using Automatix, you need to uninstall the Nvidia drivers in Automatix if you installed them.

4) Now, open up your software sources and uncheck all software sources on the ‘Third Party’ tab (even automatix).

5) Download and run Envy (let it overwrite your xorg file), then reboot.
http://albertomilone.com/nvidia_scripts1.html

6) Open up your software sources again and add the following repository in the ‘Third Party’ tab (after you close, it will prompt you to reload, click reload):
deb http://ppa.launchpad.net/amaranth/ubuntu feisty main

7) Next, open up Synaptic Manager and do a search for ‘compiz’ again, and install the following:
compiz
compiz-settings-manager

Note: After installation you will see an update and if you try to install it, it will say it can’t because its not authorized, don’t worry about this, you don’t have to install it. Instead, you can just remove the ‘deb http://ppa.launchpad.net/amaranth/ubuntu feisty main’ repository, you don’t need it anymore.

8 ) Before opening compiz, we should change a couple settings so open the compiz settings manager and change the following:
a) Click on ‘preferences’ and in the ‘backend’ section choose ‘Flat file configuration backend’
b) In the same window, create a new profile
c) Now, look for the ‘window decoration’ module and in the command box type: gtk-window-decorator

9) Now you can start compiz by opening a run app box (Alt+F2) and type: compiz –replace

Eric