To install Nvidia Geforce 8400M GT Drivers on Commodore OS vision (So that you can get compiz and all the eye candy) do the following:
First go to the menu system..comodore extras..Install graphics driver, then:
1) Download Newest Nvidia Linux 64 bit drivers from Nvidia website for your graphics card
2) Open module blacklist as admin
sudo gedit /etc/modprobe.d/blacklist.conf
3) Add these lines at the end of the file and then save:
Multiple Video Outputs
A rather neat way these days to expand the functionality of your Linux Desktop is to spread the Desktop screen itself across several monitors. There are many ways to achieve this and one of the ways we will discuss here in this article. Dual screens are not that uncommon now days even for Ubuntu(Linux), Windows and Mac, this article however will be dealing with the configuration of a Quad Monitor display output.