Do what Gary says above and then also DrDuBose except....

I wouldn't install the latest Nvidia drivers for your card (did you post the model somewhere) if it's less than a series 8 because the new drivers load Physx which you don't need and can't use.

Good drivers before Physx are 169.21 and 175.16. Note that with Nvidia the best driver is the one that works for your computer AND software and not necessarily the newest one.

A good program to sweep out your old drivers is DriverSweeper. It can find your motherboard drivers and remove them as well. Be alert!

Here's a link. DriverSweeper

Remember to backup your system at intervals when changing out drivers. That alone will save you days worth of work if a driver doesn't work out well.

DTuna