Web pictures that are in GIF or JPEG formats should be converted to PICT before inserting them in the slide show. It's also a good idea to reduce the picture to a small physical and memory size so the finished slide show is not too large. Programs such as Graphics Converter are useful for converting images. Graphs are a great enhancement in many types of presentations. Choose the correct graph type for your information.
Slide shows with several graphics occupy a surprising amount of ram and storage.
The slide show was too large for a high density desk. Once your information is complete you can create the slide show. In ClarisWorks, for example, simply select the slide show option under view and determine the settings for the background color and special effects. If your slide show is a word processing document try out different the background colors to see which is best for the lighting. Triple spell check and have someone else look at your slide show before you give your presentation.