I bought my sister's family a belkin wireless keyboard and mouse to go with a computer I build them. When I installed the OS I used a generic keyboard and a MS USB mouse. Now that they are using the belkin keyboard and mouse they can't use the special function keys or install the drivers. When they install the belkin dirvers the keyboard and mouse quit working. The light on the reciever lights up when you move the mouse or hit the keyboard, but no response from the OS. Any tips?