Hey, ive just got a little problem that i cant seem to work out. Im making a product for a friend, and what i wanted was to make a cardboard package with curves and that little hook thing that all products have.

I made the texture in photoshop with an alpha chanel.
In maya's display view, the corners and hook bit look fine, but when i render in mental ray using final gather, it shows the corners and the hook part that should be completely transparent.

Please tell me if uve got any ideas of how to fix or get around this problem.

Thanks, Joel