[arch-general] Nvidia Driver Installed But Not Running

I recently installed the nvidia driver from 'Pacman' and rebooted. I have not since updated / upgraded the kernel. I notice that when I try and open my 'nVidia X Server Config' window and it tells me: You do not appear to be using the NVIDIA X driver. Please edit your X configuration file. I looked in /etc/X11/ directory and don't see xorg.conf file. Does anyone know how I can get my nVidia drivers working on Arch Linux? It installed fine however it's not running for some reason. -Carlos