Restart the computer and press f8 for boot options, select "safe mode with networking". Go to add/remove programs and unistall the driver. Download the new driver from http://nvidia.com/content/drivers/drivers.asp. If this does not fix the problem chances are it has nothing to do with your Video driver.
A forum community dedicated to tech experts and enthusiasts. Come join the discussion about articles, computer security, Mac, Microsoft, Linux, hardware, networking, gaming, reviews, accessories, and more!