Thanks Alex and acid_kewpie.
I can not make sure whether ns4 or ns600 java plugins, I copied both file in usr/java/jre1.3.1_01/plugin/i386/ns600/javaplugin.so and usr/java/jre1.3.1/plugin/i386/ns4/javaplugin.so to the /netscape/plugins folder. When I "about
lugins" in netscape command line, there is a prompt said "libnspr4.so cannot load shared object file: No such file or directory Cannot load plugin usr/java/jre1.3.1_01/plugin/i386/ns600/javaplugin.so ignored". ANd there is no java plugin in the list. What is wrong? Please help!