I have just bought Oculus Rift and I have a slight issue. My 4k pc screen is plugged into the pc via the hdmi connection out of the graphics card GTX1080. Oculus needs to be plugged into the graphics card hdmi slot so unplug the screen and then what. I have tried a to plug the screen into a hdmi to dvi connection on the m/board but that does not work. I have also tried to plug the screen into the hdmi slot on the m/board I changed the screen resolution thinking that the dvi port needed a lower res but still nothing. I have changed screens from the 4k to a tv and also a dvi to dvi older screen and still cannot get a screen to work. The OR is ready and waiting when I can overcome the screen issue. I am sure this is a quick fix but I am stumped. Any ideas.