I can't help you with your particular keyboard. But I have a wireless keyboard and got fed up with not knowing if the 'Caps Lock' was on or not. I found a little item on the net called 'KEYBOARD LED's' It works great.
Member RevoMaxx is quickly moving up the ranks of Acer Community. He joined us in September and is already making a difference. It's great to see new members like him make a difference only after a few months. Thanks RevoMaxx!