V-ray and 3ds Max 9

[ash_scotland88]

I downloaded the v-ray demo and trying to work through this tutorial:

http://www.aversis.be/tutorials/vray/vray_studio_lighting.htm

I need to change the fresnel IOR but on mine it's greyed out, is this removed from the demo?

A direct link to the image showing it, here it's not greyed and can be changed.
http://www.aversis.be/tutorials/vray/popup.htm?images/vray_studio_lighting/big/materials_big.gif