If your web browser cannot display the PowerPlay Java applet and "Load Java Applet Failed..." appears in lower left side of browser, you need to install the Java Runtime Environment (JRE v1.5) which allows end-users to run Java applications.  If you want to save the digraph you created, please use the Advanced Powerplay. If you need more detailed information about how to use PowerPlay, please click the menu link.

alt="Your browser understands the <APPLET> tag but isn't running the applet, for some reason." Your browser is completely ignoring the <APPLET> tag!