First, you'll want to download the device driver from the NVIDIA website, provided by me in the sources section. Select the proper video card, and select either the Linux 32-bit, or 64-bit version, depending on which version of Mandriva you have.Next, you'll have to find the driver on your hard disk, then extract it using gunzip and tar (search for tutorials if you are unfamiliar with extracting files on Linux, it is fairly easy to do).Next, type init 3 into the terminal logged in as root to shut down X Windows. This should bring you out of the desktop environment to a simple terminal. Log in as root and find your video card driver again.Now, run the driver using the command sh (driver name). For example, sh NVIDIA-1.0.8174.run This will run your driver's installation which the on-screen instructions will guide you through.Once the installation has finished, you will probably want to get back to the X Windows desktop. Simply type startx into the terminal.