I just got my Mac Mini today and got it all set up. The guy at the store said any keyboard with Bluetooth should work, but it's not picking up any kind of signal for some reason. Nor is the mouse. I bought the RocketFish Wireless Keyboard and Mouse Combo. Can anybody tell me what I am doing wrong? I follwed all of the directions on the box and in the instructions. My computer won't let me choose any set up options until it will pick up on the mouse.