This is copy and pasted from Silat's help file... sure he won't mind.
Download the driver, save it then follow the directions below.
________________
Now get this:
http://www.driverheaven.net - Put it on your desktop
Now install DRIVER CLEANER
Go to add and remove programs and remove all references to ATI or Nvidea.
Restart in safe mode. Usually by clicking the f8 button during reboot.
DO NOT INSTALL ANYTHING if windows asks.
.
Run DRIVER CLEANER AND CLICK THE CLEAN button.
Then restart. DO NOT INSTALL ANYTHING once again. It's ok, all will be well

When you reach your desktop click on the driver you downloaded and follow prompts.
Restart..
If you have any problems read the helpfile that comes with DRIVE CLEANER.
Lew/+Silat