My father's Kenwood VR-407 just won't accept commands from the remote anymore. It's the original Kenwood remote and I even tested it on my VR-507 and it works fine. I'm guessing there's a problem with the IR receiver in the receiver itself. Since it's still under warranty (bought it from CC who doesn't carry it anymore) guess we'll have to ship it off to Kenwood to get it fixed. It sucks to have to go through all that for such a minor problem. Just wondering how common or rare IR receiver problems are, particularly with Kenwood receivers. All the electronics devices with IR communication I have have never failed me this way. Just shabby build quality?