> For Nvidia users…
This goes for any card manufacturer, but having the most recent drivers for your card (usually) results in the best gaming experience. In rare cases, rolling back to an older driver may correct problems you are having or result in better gameplay.
Grab the latest drivers [ HERE ]
For users with Nvidia based video cards and/or Nvidia chipsets on their motherboards, nTune is one of the best apps for monitoring, tweaking and overclocking your card and/or system. Grab it [ HERE ]