Forumwarz is an advanced web application that is designed to run on the latest browser technology.
We highly recommend the latest version of Firefox (3.0.6 at the time of this writing) which is absolutely free and available on all major operating systems.
However, the game should run fine on Internet Explorer 7 and Safari 3.2.
Some people have had success running Forumwarz in the latest versions of Opera, but we do not officially support it.
If you are running an older version of those web browsers you should seriously consider upgrading. Not just so that you can run Forumwarz, but because security vulnerabilities are quite common for web browsers and you should do your best to keep your computer safe.