I just bought a Marantz RC5000i. I got all my remotes programed like I want, but the problem I am having is that each time I hit a device button it automatically changes the input on my Marantz SR19 receiver even though I don't want it to. The only solution I have so far is to cover the front of the remote when I hit the device button so it does not send the signal to the receiver. Any help to solve this problem will be greatly appreciated. Please be specific on your instructions, as I am still learning this remote. Thank you so much.