I am trying to render my model using mental ray and I keep getting the following errors which are some of my sub poly surfaces that will not appear in my final render. I can render using Maya Software, all others I have problems. If I leave at Polygons no problems, when I change to sub polys then I have problems.

Can anybody help with this one? Thanks in advance.

// Error: (Mayatomr.Geometry) : polyToSubdShape132, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : polyToSubdShape143, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : polyToSubdShape173, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : polyToSubdShape167, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : SmileyPolyFace, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : polyToSubdShape171, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : polyToSubdShape1, non-quadrilateral face in subdivision surface base mesh not supported, ignored //
// Error: (Mayatomr.Geometry) : RightEyeBrowPoly, non-quadrilateral face in subdivision surface base mesh not supported, ignored //