Hi! I just bought one of these so I could use my DVI connection from both my DirecTV and Dish boxes. It works fine most of the time, but tends to "freeze" every once in a while. The power indicator stays lit, but it won't change inputs by the remote, the front button, or the Harmony 880 that I use. I have to disconnect the power, then re-connect - then it's fine for a few more uses until it freezes again. Anyone else having this problem? Any idea what I could do to fix it? I returned the first switcher, thinking it was defective, but the second one does the same thing! Thanks in advance.