Hello

I've (only) just started looking at HDRI and mental ray and have assigned a blinn surface to the cello model shown. I've added a test texture to the shader and when I render it with mental ray the suface just comes back like the default with no texture showing.
Is there a (basic) setting I've missed or have I applied the texture wrong or something? All the mental ray options are on default.

Here it is in the viewport on the left and the render on the right: