hi khenglish,
thanks for the replay.
I installed the driver using inf mod, but all the drivers I installed, I could not "put the card to work". its show ok in device manager, In gpu-z it appears with the normal clocks. But I can not switch between the intel hd 3000 and gtx 260m. In older drivers such as 260.63, 275.33, i can even access the nvidia panel, but there is no option to choose the video card.
In newer drivers such as 342.00, 314.21. I can not access the nvidia panel, it gives a message that the video card is not plugged into any display. Follows images. Any tips?