Dial-up Users: This course includes audio that is designed to stream over a high-speed internet connection. However, the audio is not required to view the course. An accompanying transcript of the audio is included, and the audio may turned off in the user interface. You may learn how to view the transcript and disable audio by selecting "How to Navigate" at the beginning of the course, or by selecting the "?" icon in the upper-right corner and choosing the "How to Navigate" option from there.