bug in css validator

W3C,
with all the most sincere respect to your great work to make the web a better (and free) place, as a web designer who struggle to contribute (for the little I can) to the use of standards, I ask you to fix the bug that incorrectly label invalid CSS sites employing the box model hack for IE Win.

Thank you
Paolo Sordi

http://www.luiss.it/
http://www.infolet.uniroma2.it/chisiamo/sordi.html
http://www.sottomondo.it