I am having an interesting issue with my MSI GT70-20D I attempted to connect a Bluetooth keyboard after updating the Atheros WiFi adapter driver. There were no Bluetooth settings available. I then went to the MSI website and got the latest Atheros Bluetooth driver, installed, and restarted. At first the Bluetooth driver popped up in device manager as well as in the stupid W8.1 devices page. When I attempted to pair a device, it disappeared right from under my curser. I went back to device manager and it was in a continuous loop of refreshing. The first few times, I saw the Bluetooth driver appear and disappear, then it disappeared altogether. I though maybe my driver download was corrupt, I downloaded and installed again--same result. What I am wondering is if I did not delete the old driver, is it in there somewhere causing me problems?