Laptop or desktop?
Graphics card? Switchable graphics?
Have you tried the latest drivers? 5.11.1 ?
Thank you for the reply. It's a desktop with an Intel i7-2600 CPU, and Radeon HD 6800 series graphics card.
I don't know what you mean by 5.11.1? I have the latest Catalyst Version 15.7.1 installed with its associated drivers.