STEPS TO REPRODUCE:

- On a WinNT sp5 machine, install the JRE for Firefly PR3 respin build
  from:
        /usr/local/java/jdk1.3.0_01-beta_refresh/bundles/win

- Install the NS6.0 browser.
- Five DLLs need to be copied from the plugin/lib/applet directory to
  NS6.0/bin/plugin directory.
        NPJava130_01.dll
        NPJava130_01a.dll
        NPJava130_01b.dll
        NPJava130_01c.dll
        NPOJI600.dll

- Run the Signed Applet invoking the Signed Script test from:
http://javaweb.eng/~vmanda/oji/javasoft/security/pluginhtml/SA_SS.html

RESULTS:

- For both English JRE and the I18N JRE, the applet throws the java.lang.ClassNotFound exception, class SA_SS not found.
  However when the same applet is run in NS4.71, it runs fine. So it is a
  problem with NS6.0.