A "triangle with an extra vertex" is usually called a quad :biggrin: and not even Studio or Poser have problems with those! I would be more suspicious of the neighbouring 5-vertices stars as source of problems.

I think that Modo spoils people; I have seen a tutorial in which the tutor created a face with 30/40 edges and the render was nonetheless perfect. Don't assume that low end stuff like Poser or Studio share the same amount of badass-ness.

GIMP 2.7.4, Inkscape 0.48, Genetica 3.6 Basic, FilterForge 3 Professional, Blender 2.61, SketchUp 8, PoserPro 2012, Vue 10 Infinite, World Machine 2.3, GeoControl 2