After a video clip hover the mouse at the bottom and use the right arrow key to advance. When on a Q & A page DO NOT use the arrow key instead hover your mouse over the answer, ensure it’s a “hand” and then click it. On the following page click to advance. If you receive “try again” you will return to the question, a “correct” page click continues video. If you move forward before the video stops just use the back arrow at the bottom.