Mac Java Interface Error Accessing MapServer CGI

[Alexspringer at aol.com]

A Mac user attempting to access our Mapserver CGI with Java interface, which 
works fine with IE5 on Windows, fails to connect and gets this error ... 
anyone know the solution?

Incurred while using Internet Explorer 4.5 for Mac using OS 9.1.

Java Exception: java.lang.ClassNotFoundException -
netscape.javascript.JSObject
Stack Trace:
java.lang.ClassNotFoundException: netscape.javascript.JSObject
 at
com.apple.mrj.JManager.JMAppletClassLoader_IMPL.loadClass(JMAppletClassLoaderO

ld.java)

 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java)
 at map_display.init(map_display.java:7
An exception occurred: java.lang.ClassNotFoundException:
netscape.javascript.JSObject for netscape.javascript.JSObject
2/24/2001 @ 8:1:3
Java Exception: java.lang.ClassNotFoundException -
netscape.javascript.JSObject
Stack Trace:
java.lang.ClassNotFoundException: netscape.javascript.JSObject
 at
com.apple.mrj.JManager.JMAppletClassLoader_IMPL.loadClass(JMAppletClassLoaderO

ld.java)

 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java)
 at map_display.init(map_display.java:7