In ubuntu 9, shutdown now command not work, it will bring you back to recover mode

Sulotion:

shutdown -P now

Goto find correct video card and OS

http://www.nvidia.com/Download/index.aspx?lang=en-us

Download driver (Shell Source Code)

1. Install Driver in Ubuntu
   

2. Crrl-Alt-F1 (or F2) in shell mode
   

3. Stop Xwindows
   

   sudo /ect/init.d/gdm stop
   

4. run install shell
   

   sudo sh /path/NVIDIA.somedriver.run
   

5. Return back windows
   sudo gdm