Issue with ATI Mobility Radeon HD 4570 Series

I have laptop ASUS K50AB, with 2 graphic cards, one is ATI Radeon HD 3200 and it works fine, but another one is ATI Mobility Radeon HD 4570 Series, and I have huge problems to instal drivers on it.

First I reinstaled my Windows 7 Ultimate x64, and all drivers are updated except this one(there is yellow mark on it), I tried to instal it automatic but it says that newest drivers are instaled allready, then I got some drivers from ati website and it still does not work :/

Can anyone help me please?

Best regards

The specs on the computer seem to say the 4570 is the primary video card. Since I have no experience with a laptop that is capable to two video cards, is it on the motherboard, or in some access panel on the unit?

Is there anything in the bios about which card to use. Maybe you would need to set the 4570 as primary to get the system to look at it.