To view any of these presentations, all you need is a multimedia equipped PC and an internet connection, as the audio is delivered via your PC's sound card.  If you are unsure of your PC's ability to view the presentation, click on System Check and it will perform a self-diagnostics check.  If there is a problem, it will give a red "X" that will indicate the source of the problem."  When viewing the presentation(s), please also remember to access the "Q&A" and "Attachment" tabs for additional information on the subject matter.