no clips will play
I can import mp4 files into the project tray, double click so they open in the progrm tray, drag into the timeline, but when I press play...nothing. I can step through the video frame by frame, drag the marker and the video advances, but won't play. I am a novice with premier pro, but have made a few edits and generally understand how it works. I tried opening the tutorial to rule out some problem with my video source and have the same result. Could this be a result of an update? Can I roll back to find out? Thanks for any help!