Hi all; I am using Nvidia Geforce 8600M GT and windows 8 opearting system. When I try to Nvidia control panel, I am getting error message. "Nvidia Display settings are not available." In addition, lots of times I tried to install update nvidia drivers (310.70) but problem was not solved. If i update VGA bios update, is this problem solved? Thanks for your supports. In addition when i look to device manager, I am getting this message "Windows has stopped this device because it has reported problems(Code 43) for my graphics card"