I connected only the HDMI as indicated. I will say it does auto-detect MOST of the time. It's slightly improved, but I still find the settings to revert to defaults.
I have to go back into the settings, and change from normal to widescreen.
Also from time to time it still just looses signal, and I have to cycle through my TV inputs to "wake up" the 750...
I don't suppose there is any chance of a firmware forthcoming from D-link to address any of these "annoyances"? It does seem like the manufacturing world has walked away from the MCX platform for the most part.