JAVA problem

I have Windows7 64bit with Java 6_31 client installed but when I try to open java URL,
I get error:

load: class Client.DocumentSelectApplet.class not found.
java.lang.ClassNotFoundException: Client.DocumentSelectApplet.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassNotFoundException: Client.DocumentSelectApplet.class
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It works fine with Windows XP workstations. Any inputs or opinions will be appreciated.

Try uninstalling & reinstalling Java, if you haven't already. Many users installs the newer versions of Java (& Flash) over the older versions. Oracle themselves recommends this.

Why should I remove older versions of Java from my system?

It may not resolve your issue, but it won't hurt anything either.

Cat