Another question: how did you solve the problem that you can't use secondary graphic cards? I tried the dummy plug trick, but this stripped down windows does not seem to use the second screen, and thus does not allow using the second card! I had now to boot up and manually start the miners with screen plugged into the corresponding card... At least I only have one rig ;-)
Odd I have 7 computers working with this setup each with 4 GPUs and 4 dummy plugs what video card are you using?
I also log into these computers using
www.logmein.com because Remote Desktop will disable all the video cards. When I use LogMeIn I have access to all the monitors and I can jump to each monitor.