[ Thanks to Falko
Timme for this link. ]
“Go to the NVIDIA official web site. Navigate to the
drivers section. Choose the latest appropriate driver depending on
your Linux platform (32- or 64-bit) and your graphic card model.
Download the driver to your /home/username directory (or any other
place of your choice).“Installing the Required Packages
“The packages which are required for installing NVIDIA drivers
and are not included in Debian Lenny by default are make, gcc and
linux-headers-xxx. In order to install these packages, insert the
first Debian installation DVD into your optical drive, open the
Terminal and run the following command as root:”