I used to love this unit until it started doing this crap with my HK AVR-254. At random times when I hit the Volume Up or Volume Down buttons on my remote, the Next Gen extender keeps sending a up or down command. The only way I can stop it is to unplug the power from the unit. Has anyone else run into this? It's driving me crazy and I don't know whether the unit has gone bad or it's just some quirk with my setup.