I have had many issues with Camtasia on my mac-book pro fortunately, we have a windows desktop my husband uses for virtual reality and his work. I have had to do all my video/screen recordings and editing on Windows.... I am very frustrated with purchasing a product that says it is for a MAC and then it does not work. Now that I have the recent mac OS... even my Snagit is not working.... I have been using Snagit since it was in BETA and on a floppy drive !!!!