Can't View Materials in Material Preview

I recently installed Max 9 Vray SP-1 on a 64 bit platform.
I am accessing a Revit file created in Viz 32 bit. Materials were all applied and looking correct.
When I open the older scene in Max 9, I cant see any of my materials.
Any suggestions?

THX..

hmmm

maybe vray isn’t set to your render ?

That was the first thing I thought of. and it is set to Vray. Just to be sure. I tried to re-assign to default scan line, then back to Vray. but no luck.

So what does your material editor look like?

Best regards,
Vlado

I figured it out. My License wasn’t running. ooops… I’ve now made it run at start-up.
see this thread for more info.

http://www.chaosgroup.com/forums/vbulletin/showthread.php?t=38832&highlight=material+preview&page=2

thanks,