Running Java WebStart Apps with JDK1.5

I have just installed JDK 1.5 and it all installs fine
However when i try to run a Webstart Application by clicking on a link to a JNLP file i get a dialog box telling me the following
Cannot load class sun/plugin/JavaRunTime
The bridge was installed at <C:\Program~1\Java\JRE15~1.0> but the class is not there please modify registry key to reflect the new position.
The key is HKEY_LOCAL_MACHINE\Software\Java Plug-in
or change classpath to include the new directory
Please consult documentation for more details.
What is it talking about, why is this doing it?
I have a windows 2000 machine SP4.
Hope someone can help
It used to work with 1.4.2_04 absolutely fine.
Cheers
Dan

The problem may be cause by Java trying to update itself, especially if you are running behind a firewall. Try this: Open the Java icon on the Control Panel, click the Update tab, and deselect "Check for updates automatically".
That fixed the problem for me, after days of installing and uninstalling Java, trying to interpret the unhelpful message, and searching the internet.

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"scripts" are entirely different from GUI applications. What do you expect to happen when you run a Swing application through telnet on another machine? Do you expect the Swing UI to be magically transported to the local Windows machine?
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