This module includes QuickTime, Flash, Shockwave, and Chime elements, plus a few Java files. You may want to run the Browser Tune-Up to ensure that you have these programs. If you are using a Macintosh (Mac OS 8.x or 9.x), to run Java files, you will need to download and install the Apple MRJ 2.2 Java RunTime engine. If you are using Mac OS X, you do not need to make this step.