I am using a MacBook and I am unable to watch a lecture in canvas ? It continues to say open in another window?
There are a variety of ways that a video could have been added to Canvas. This is a community of Canvas users but none of us have access to your instance of Canvas to take a look at the specific issue. I suggest talking to the instructor about the issue, or clicking the Help button on the left side of Canvas and clicking the Report a problem link. A Canvas support person should be able to take a look at the actual spot in the course where the problem is occurring and make some recommendations.
Retrieving data ...