It's shutting down XP? Are you getting the blue screen?
Your earlier posts said that LW was shutting down...not that XP was shutting down

Try Java 1.6. Remove all your other Java versions before installing the new one.
http://java.sun.com/javase/downloads/index.jsp

If you're seeing the blue screen
http://www.gnutellaforums.com/showth...&highlight=bsd