To me, it seems to be a conflict between the Microsoft Java VM, and the Sun Java VM JEmplode likes to use.

I don't understand this error. I'm using win2000 with the most recent service pack (SP3).

This might work then. Open up the "Add/Remove Programs" control panal, and play with the default for Java options. See if that affects the error in any way. A site that should trigger that is the RioCar boot logo page as it still uses a Java applet to display the animated logos.