Lenovo y480 problem

[aresun]

Hello,
i'm just bought a new lenovo ideapad y480....so i install the gt640m le driver on my lapatop but the problem is my nvidia control panel only have 3d setting...no video setting or others...is it a driver problem or software problem?? how to fix this problem....also dxdiag cannot detect my gt640m le, it only detect intel hd 4000.

 

[unreal9400]

I have the same laptop and under the 3d setting there should be 3 options
-Adjust image settings with preview
-Manage 3D settings
-Set phsyx configuration
It's not a driver or software problem since most additional options are available on dekstop graphics card.
About Dxdiag the intel hd 4000 is used when you are not playing games and it will automatically change to nvidia gt 640m le once you start a game.