ok...unless you live in a cave...you know about this bullshit
here is what you need to do
FIRST
go to http://microsoft.com/downloads/details.aspx?FamilyId=1B00F5DF-4A85-488F-80E3-C347ADCC4DF1&displaylang=en
download the patch....thats for WIN XP...if you have WIN 2K its there somewhere...