Are you saying the latest ED doesn't work with the 0.5 and 0.6 runtimes? What version do you recommend using? I'm running 0.6 with the latest NVIDIA drivers and the DK2 in extended mode. Unfortunately, ED (+Horizons) is not detecting the headset and I can't see the HMD option under 3D, only "Off", "Side by Side", and "Anaglyph". Any help appreciated!
You can use my runtime switcher to use 0.6 and 1.4 simultaneously: http://www.drkaii.com/tools/