Nvidia
To enable support for nVidia graphics cards, first install the driver nvidia-glx using [https://www.ubuntulinux.org/wiki/SynapticHowto Synaptic], then type nvidia-glx-config enable at a root terminal to enable it.
Applications -> System Tools -> Root Terminal
The nvidia-settings package provides a control panel to configure graphics card options such as gamma correction.
If you are going to compile 3d applications, you will want to install the nvidia-glx-dev package
Note: If you wish to use these drivers and run the XMMS music player, you should be aware of [https://bugzilla.ubuntu.com/show_bug.cgi?id=1724 this bug]. You can get around this bug by installing libmik.
Note: Be sure to have the right version of linux-restricted-modules installed. It must match the version of the running kernel.
For other drivers, refer to the BinaryDriverHowto Part of UserDocumentation