Play button on timeline won't work
I'm trying to add cue points to the timeline. So, I click play on the timeline and get ready to add cues, but nothing happens. The button changes from play to pause as though it's about to starting playing, but nothing happens. I go to the next slide and the button is showing pause, as though it's currently playing. I have to close out the program just to get the play button back. Anyone have ideas?