I believe it is cuased by M$ losing the Java lawsuit. when you updated XP, bet it removed all the java controls from the "virtual machine" thing M$ XP used to incorporate Java.
You will need to go to the Java web site and I think on that page is something like "Get Java Now" or something and that will D/L the files you need.
Hope that helps
xp update question
Moderator: RLG MGMT Team