• One Person.   An explanation of the presentation controls, and details for each image, will be shown automatically. Text font will be smaller* so more text can be seen at once.

• Audience.   The explanation of the presentation controls will not be shown, because it is assumed the lecturer is familiar with them**. Details will not be shown unless the lecturer clicks (changing it to Text font will be larger* to be more easily readable by the audience.

• Development.   For use only when developing or modifying the content of the presentation. Similar to "One-Person" mode except that presentation control help does not pop up automatically**. In addition, script filenames are shown next to buttons, and the names of files containing details are shown beneath the details in the pop-up boxes.

* Once the presentation has started, text font size can be increased by clicking on the large A, or decreased by clicking on the small A in the icon AA.

** Once the presentation has started, help on presentation controls can be displayed at any time by clicking on