Problem playing game's?

[classyash]

Hi I downloaded the demo versions of world in conflict & Medal of honor airborne.

Now when I play these games I get what I can only describe as "walls of colour" which is really annoying because it block's the veiw from what I was looking at.

Happens on low graphic setting's as well, anyone know how to sort this my spec is in my signature.

Thank's

 

[classyash]

Sorry for sounding dum but how do I change the driver's?

 

[classyash]

That done the trick for a little while then started doing it again?