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How do I install latest NVIDIA drivers by hand?
nvidia-installer log file '/var/log/nvidia-installer.log' creation time: Thu Dec 13 21:28:38 2012 installer version: 304.64
PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
nvidia-installer command line: ./nvidia-installer
Using: nvidia-installer ncurses user interface -> The file '/tmp/.X0-lock' exists and appears to contain the process ID '1200' of a runnning X server. ERROR: You appear to be running an X server; please exit X before installing. For further details, please see the section INSTALLING THE NVIDIA DRIVER in the README available on the Linux driver download page at www.nvidia.com.
please help me fix this.