When you splashed out for a new swanky mouse like Logitech VX Nano, you sure want to make the most out of your investment, which means making its programmable buttons work. The problem is, however, that many Linux distributions recognize most mice as a generic pointing device, so none of the fancy extra buttons work right out of the box. Fortunately, the btnx utility can help you to turn your mouse into a versatile tool it meant to be.