For some reason I'm having trouble updating my direct X to the latest 9.0c April 2006 version.  When I download it I extract the contents to a blank empty folder and then run the setup.exe but after, when I l look in dxdiag none of my direct x files seem to be updated.  What am I doing wrong?  I am running the Direct X 9.0C version but the one that comes with service pack 2, I just want to have it updated to the latest 9.0c build, April 2006.