After you install the latest image on the ProxySG or if you experience problems using the Director Management Console, Blue Coat recommends clearing your Web browser cache. Clearing the browser cache triggers a reload of the Java Archive (JAR) files. This reloading prevents Java exception errors on the Web browser when you access the ProxySG Management Console.
For more information about the Java Control Panel, which enables you to clear the Java cache, see http://java.sun.com/javase/6/docs/technotes/guides/deployment/deployment-guide/jcp.html
For more information about Java applet caching, see http://java.sun.com/javase/6/docs/technotes/guides/plugin/developer_guide/applet_caching.html
For step-by-step instructions, see 000011017 .