Pam Mowbray

My new laptop ASUS N750J has an NVIDIA GEFORCE GTX 850M. I installed SL viewer and got the warning that the hardware is not good enough to run SL. I set the graphics slider to ULTRA but the check boxes for shaders and other advanced lighting features are all GREY and I can not enable them. With Firestorm i have no warning and i can set all graphic features.