Sometimes a video on won't play as expected, but there is usually a very quick and simple way to address this! 

1. Check to make sure you have an up-to-date version of JavaScript, Flash, and your Cookies are all enabled.

2. Try logging out, and logging back into your account.

3. If steps 1 and 2 are not suffiicent, you may want to try viewing the lesson in another browser. 

4.  If none of these options make a difference, please reach out to customer support! Our team can help you troubleshoot and get you back to your studies quickly.