Hi Marty,
Think I may have invested just a little too much for too little with the Vive. Not very sharp, but I'll persevere.
I think I may have found an issue. When Windows is in Aero mode and not using Vive, the HUD doesn't work. I turned it off and the HUD came back.
There is another issue with Aero. In non-Aero running of the simulator (not game) the screen will freeze for tiny periods of time. In Aero mode, the screen will freeze for up to ten seconds.
I used to use the simulator on the iMac, but when the freezes happened it was all over red rover. The video card just gave up. I'm going to take Aero off on the iMac and see if it works without failing.