Hey again,

makin a good mentalray is one tough cookie to crack...

if you are interested, i have uploaded a basic template setup for ya. simply open, import your model then try a render with mentalray set to production quality preset.

link for template scene - https://dhost.info/tiddles/mentalray_template.zip

also, the floor and back wall have just been shoved in there real quick - u should change everything to suit.

i've attached a quick shot of what the template scene looks like below. dont forget to post what you come up with....