Yes this is the plaguing issue with XP. It all revolves around the Sun/Microsoft lawsuit in which Sun is suing MSFT for screwing with Java. This is the result. Two totally different types of Java with no standards, then when the other guys browser doesn't read it right and throws errors on every page that has been using Java since the dawn of time, the user gets screwed.
Turn of Script error checking in your IE tools. It's in the advanced options.
click on tools
then look under browsing
which is just one of the several groups of options
then look at all the boxes, some with checks, some without
what you want to do is make sure that the one that says
"Disable script debuging" has a check in it