I have been using presenter view for quite some time but just this week have run into a problem. The presenter view on my mac screen is showing the screen currently on the classroom projector screen, but on the computer instead of seeing the next slide that area is black. I still have the notes section, the slides at the bottom of the mac monitor. It is very odd, everything looks exactly how it always has except the waiting slide is not visible. The area is there for it, but the area is black.