I just replaced my (now-dead) Technics KX-930 receiver with a Kenwood VR-507, chosen because it was in my price range (~$300) and because it was the only one in that range that featured two coax digital audio inputs, which would mean I wouldn't have to manually switch wires when going between my two DVD players. (One's got better quality, the other does multiregion, MP3, etc.) I got it from Crutchfield and set it up, and had a movie playing while I did so I could make sure I was hooking up the correct wires for each speaker. I noticed that it was occasionally "clicking" - the same click that it makes when you turn the receiver on, and sometimes makes when switching inputs. (The same click that my Technics would make whenever flipping between stereo and surround mode.) This was while playing a 6-channel DVD. I figured it was due to me hooking up the speakers while running (quietly) and didn't pay it much attention, but when it was all set up, it would actually click, losing the audio for a second, then come back like nothing had happened. Once or twice, it even lost the connection completely and stayed off, and switching to another input and back would get it working again. I tried switching cables (I just use regular ol' cheapo RCA cables, my thinking being that it's a digital signal, as long as it gets there it should matter, and they've worked perfectly with the Technics for a couple years) and that made no difference. Called Kenwood, they figured it must be a bad receiver. Called Crutchfield, they agreed and shipped me out a new one. (Great service by them, BTW.) Received the new one, and took pains to leave it unplugged while making all the connections, fired it up, and tried it out. It played the first forty minutes of "Sleepy Hollow" perfectly, then clicked, and clicked three more times in the next few minutes. I tried a few other DVDs and it behaved for a while, then started clicking on another DVD. I got fed up and bought an Audio Research coax digital audio cable, tried that... it seems to help, but I've still gotten a click on two different DVDs. The clicks are not repeatable, in other words, if it clicks at a certain point, I can rewind and replay the scene without a click. They don't seem to happen at a particular volume level. I'm confident that the receiver is not faulty, obviously the cable is good, and I believe the DVD player is not the problem. (A couple-year-old Toshiba.) The speakers shouldn't be an issue - PSBs for everything but the surrounds, which are Polk. I never had an issue like this with the Technics. Has anyone seen a problem like this before? Is this likely to be just a Kenwood-specific problem? If there was some sort of "fix", I'd prefer to stick with the Kenwood as the next-cheapest receiver that has two coax digital audio inputs is $500... but if this is a known Kenwood problem (I didn't see anything when searching the forum) then I'll switch it for a different model, I was thinking of the equivalent Pioneer, and just manually switch the audio cable between the two. Not ideal, but I can't live with the receiver randomly clicking at me!