Hello,I bought a new Acer laptop V3-551G-8454, which comes with A8-4500M and discrete graphics 7670M. I'm using OEM Windows 8 64-bit and newest drivers 13.2. (Also I tried supported drivers from manufacturer).I've been looking in BIOS settings if I'm able to disable integrated graphics permanently, but I have only 2 options one of them is Integral and second one Switchable, so I didn't change it and using Switchable.In control panel I can switch between APU and Dual graphics as you can see on image. http://img10.imageshack.us/img10/4084/78823097.png I'm using only this option, because when I turn on the second, my games run slowly, there is a problem, why is it supposed?I was running benchmark in Sleeping Dogs and with APU checked on I had Average FPS 31.4 and with Dual graphics 18.6 I think something is wrong. I tried others version of drivers, but it's same. Only one game has more FPS, but this game is 10 years old. (Counter Strike)I set everything on High performance, but I still see 7640G+7600M graphics in benchmark.Could anyone help me, how can I switch onto my discrete graphics only?