Well predictably my progress in my Udemy Data Analysis with Pandas and Python course is slower than I'd like. Mostly as I previously said, the video doesn't work properly. And I'm at this location ~11 hrs a day 5 days a week. It works fine on Linux Mint and Manjaro on my home computer, so I assume it's a Mate problem. Never fear there are many good Data Science videos on YouTube. I'm not having a video playback problem on YouTube. Also it allows me a little time to play with PyCharm. Although I may switch to Atom on the older computer because PyCharm is noticeably sluggish on it.