I had no problem using Mixed Reality on my old Surface pro 5, though it was an i5 with 8GB RAM and a Surface dock. Now that I've updated to a SP7 i7 16GB RAM, using a Dell D600 USB-C dock, I would expect it to be even better. Unfortunately it doesn't work. Seems it has trouble connecting to my Samsung Odyssey. Perhaps it can't find the HDMI. Anyone get this working?