OMG! Have I solved it! Just played about an 1hr of CoD4 and no problems!!!
Woo Hoo! Good times. lol.
So perhaps it was either the drivers, or, the temperature of the card.
But no problems at all with x4AA and smooth as butter with these DNA 8.6B Drivers from guru3d.com and 40% fan speed (will turn down when not gaming).

Will try Crysis tomorrow!!
Woo Hoo! Good times. lol.
So perhaps it was either the drivers, or, the temperature of the card.
But no problems at all with x4AA and smooth as butter with these DNA 8.6B Drivers from guru3d.com and 40% fan speed (will turn down when not gaming).

Will try Crysis tomorrow!!