Hi everyone... for some reason NS 4.x browser doesn't fully render my stylesheet???

it reads some of it but not all... if you look at the side nav in EI & NS 4.x you will see the difference... also the right side with the ads... it sees all of the styles.

www.epples.ca/webgis

what is the problem?

i know its an old browser, but we have a lot of international users in different places and i need to make sure of cross-browser compatibility & download speed.

thanks
~nina