I have the UDK installed. When I run a map using the "start in pc" the rift head mount controls work fine, but the graphics displayed are not side by side.
I have my monitor configuration set to "duplicate" as that is the only way I can get TF2 and the Tuscany demo working. What extra option do I have to enable to try out Epic Citadel with the rift? (again, headtracking works, but the side by side video does not).