If your program is Photoshop Elements, you have posted in the wrong forum. Some how your thread got posted in the Premiere Elements Forum (video editing). Please re-post your thread in the Adobe Photoshop Elements Forum to take advantage of the specialized expertise there.
What Mac operating system are you using? El Capitan? If so, lots going on with that in the Adobe Photoshop Elements Forum. Also at the following web site where you can also post