So, I bought a couple of UD-USB decoders a little over a year ago, and I'm finally getting around to using them now... or, at least, that was the plan. How do I get them to work? I've got them hooked up to an HAS 3.1, and neither is detecting any inputs, and I'm not seeing any LED indicators on them. Same deal if I try hooking them up via USB to a PC. I'm guessing that I missed something obvious to turn them on or something, because there's no way I have two of these things that don't work... errr... right?