Have an Asus X55A laptop and can't work out whether Bluetooth is onboard or not. I installed Bluetooth drivers from the X55A support page but can't find any indication Bluetooth is active. There is no Bluetooth icon in Action center, no sign of Bluetooth settings in Control panel and no definite indication in Device Manager. The product page seems to suggest it is an optional feature. Is there another way to activate it? A switch on the laptop or something?