I downloaded Dr. J talk on gestational diabetes and the audio is great, the screen is a swirl of colorful images, not slides, looks like swirling colors. What step have I missed?

We have some lectures that have podcasts as well as video lectures. You are probably clicking on the link to play the podcast first. You want to click on the "View Lecture" button on the top left of the lecture description page. Let me know if you have any further issues.