When I try to control the presentation from my iPad it will not work. We have a computer operator who controls the presentation from a laptop. When it's time to preach I want to take over control so I can move the slides according to the sermon. I am able to open the presentation from the iPad (using "Open" then "Control"). I can see the slides advancing on the iPad, as the person operates the computer, but I am not able to take over control of the presentation. I can swipe the slides on the iPad but they do not move on the screen. The blank screen and logo options on the iPad also become unresponsive.
