I just hooked up a AZZA Delta Keyboard to my system. It works just fine except for the red backlighting. The backlighting only works when I shine light into the keyboards light sensor. When its dark in the room the keyboards backlighting is off unless a shine a flashlight into the sensor. The dimmer control knob on the keyboard will dim the backlighting if light is seen by the sensor. This is a complete reversal of how the sensor is supposed to work. I need the keyboard to light up when there is poor lighting in the room not when I'm blinded by the light. Is there a simple fix other than just returning the bleeping thing?