Hi there, having same problem with Windows 10 and PowerPoint 2016, have also tried using the PowerPoint Viewer and still say issue. Load PowerPoints into schedule and they appear in the live window ok, but after you save the schedule and then exit OpenLP and then re-open and load the schedule, the PowerPoint slides do not appear in the live window, but appear on the live output ok, in the live window it is just a blue screen. Any assistance would be grateful, as I am going to another church to pilot OpenLP to them and this issue wouldn't look good as trying to move away from EasyWorship.