Hey Virginia Arnold . Sorry, I just saw that you replied to my post. Although you can use various web browsers, our videos work best with Chrome. If you're still having issues with the videos, you may want to try them on Chrome. A couple other things that you may want to check is the Flash Player the latest version? Or try clearing the cookies and cache. Here's a link on how to do those things: https://grokker.com/faq#whyslow

I am using the web browser, and I couldn't watch any of them, I am most intrested in Sherry Zak Morris's classes

Hi Virginia Arnold. Is there any particular video you are having trouble watching? Or is it all of them? Are you using a web browser or the Grokker app? If you can give me a little more information, I would be happy to help you.