Photoshop Elements 2018 Organizer will not play videos

PE 2018 Organizer will not play videos. The following will happen randomly;

1. You get a thumbnail, hit play nothing. Hit stop and you can close the screen but video never plays.

2. No thumbnail with same result as 1.

3. You get the "preparing video" thermometer that just cycles forever; force quit required.

4. Playing freezes PE; force quit required.

All kinds of non-repeatable variations. Videos never play. No error messages.

Windows 10, Intel Integrated along with a Nvidia GTM 660.

I have tried shutting down the graphic cards; that only ends up in black screen when trying to play (GTM 660). Tried using Nvidia control panel to set graphics cards; nothing.

Any experiences would be helpful.

Thanks, Nick