Hi. Well, I had the same scene on a computer with 4 gigs of RAM (a Mac) and Mental ray accessed it fine and the renders were faster and could handle the full scene without crashing, so I figure RAM must be relevent.

Thanks for the info on therender memeory settings.

I checked those and sure enough Mental ray is only using 1.2 gigs of RAM even though there's 8 available. when I told it to calculate the RAM it didn't go up. Any idea why?

T