Can't load SDE for Sun One

I get the following error on Sun One Studio 5 update 1, when starting the IDE:

Warning - could not install some modules:

Visual Paradigm Smart Development NetBeans Edition - The module named was needed and not found.

And VP is not loaded. This was installed without error from:


on Windows XP Pro SP2, JDK version 1.4.2_06

It sounds like it’s looking for something NetBeans specific, although Sun One is listed as a platform. (Before you ask, I have to use this version of Sun One for a class.) Any ideas anyone?