This is from the chat page help sheet:
Secondly, ensure that your computer is capable of running our software. Chances are most likely that your computer can run our chat software. Often times; however; users may disable a specific feature on their web browser that may cause problems. Ensure the following features are enabled on your computer's web browser:
Java?
If you are running a version of a Microsoft Windows ? and see only a broken link icon, you will need to download a copy of the Java? Virtual Machine in order to run our application. You may download Java? Support for your browser from one of the following links below:
Microsoft Virtual Machine (for MSIE)
Sun Java? Plugin (for Netscape, Opera, MSIE, etc..)
Older versions of Netscape (on certain platforms) such as v4.08, and v4.7x may not run our software. We strongly recommending upgrading to a newer version of Netscape (v6.xx or better) if this is the case. Certain browsers running on Macintosh platforms are not capable of running our software due to problems outside of our control. As WebTV does not support Java?, WebTV users will not be able to access our chat rooms.