I have brand new MX-1200 and MRF-260. All AV components are in a cabinet with wooden door. MX-1200 is programmed to use both IR and RF. But it's only working on IR. RF is not working. I did start with id=0 and eventually set it up with id=1. Now when I press any button on the remote, light blinks on MRF-260 as if it's listening right. and the IR emitters blink which indicates the signal is getting out. But none of the AV components are responding to them. I thought MRF-260 is faulty and got a new one.. same problem with that one too. I did try different positions and away from AV components to see if there was any interference but the red light on MRF-260 doesn't blink unless the remote is pressed. So looks like interference is not a problem here. would appreciate any suggestions