I have no idear what graphics card i have but its a dell latitude d600, Whats step 2? " takes a deep breath "
Go to SYSTEM>ADMINISTRATION>RESTRICTED DRIVERS, click on it. It will read your GPU and install the correct driver (if applicable). If it does not install the driver, you will have a hard time making Desktop Effects work.
If the driver is installed, reboot. Then, open a Terminal window and type 'sudo apt-get update' (without quotes) and press Enter. Enter your password and hit Enter again.
Then, type 'sudo apt-get upgrade' (again, without quotes), press Enter. If upgrades are detected, they will be listed. Whatever they are, hit Y to install them.
After any updates are installed, type 'sudo aptitude install compiz', press Enter. if that does not work, Open Synaptic Package Manager, and search for 'compiz', click to install it, then select Apply.
Reboot again. Now, press ALT+F2 to open a command prompt and type 'ccsm' (again...no quotes), press enter. That will open the settings manager and allow you to customize your GUI.
If those steps do not work, you are not able to run it on your current GPU.