I have just installed a new projector. 35' HDMI to cabinet. 2 sources: HD Cable box and Blue-Ray. I bought a 3 to 1 Monoprice HDMI Switcher. The HD Cable signal is just fine. But the Blue-Ray breaks up. I'm assuming the extra information passed via BR is too much. When I connect BR directly to projector, no problems. SO, the problem is through the switcher. NOW, here is the question. There is an input for DC power for the switcher. But is says it doesn't need the power and no power cord was supplied. If I add power, what is the chance it will boost signal and work with the BR? Or is this just wishful thinking?