Things work as expected under the following Windows XP environments:
IE 6 with either no JRE installed or 1.3.1 installed
Firefox 1.5, Netscape 8.1 or Opera 9 with no JRE installed
However, the mismatch in JRE versions is not detected with:
Firefox 1.5, Netscape 8.1 or Opera 9 with JRE 1.3.1
In the later case, under Firefox for example, the browser appears to hang with a "Loading Java Applet.." message in the Applet area and java.lang.NoClassDefFoundError in the Java Console.
In the HtmlConverter, I selected "Extended (Standard + All Browsers/Platforms)" and "Use any Java 1.4, or higher".
Can anyone suggest a way around this problem?