What card do you have? Is it 'switchable'? Have you read the "Updating Mobility Drivers" ? Does your laptop support Win8.1? Some don't. Did you check with your laptop manufacturer to see? If so, then they will have drivers for your model.
Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200 ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit *** Clevo W650SZ laptop Intel I5-4200m
* A clear conscience is usually a sign of bad memory *