Originally Posted by: at16wood

All the lesson video's are a blank green screen. I can hear audio and see the video in a small window if I mouse over the progress bar. Changing browsers did not change it. I tried another computer also using Chrome and the video work fine. Is there a setting I need to change?

Sorry you are having trouble. It seems to be one of the following issues: either a video driver update or Adobe Flash settings.

https://helpx.adobe.com/flash-player/kb/video-playback-issues.html

https://answers.microsoft.com/en-us/windows/forum/all/all-videos-are-green-screen-after-win-10-upgrade/5f3c7ef9-68b2-4d28-92ba-c299b6f390a7

Hope that helps!