Strange cracks in Indigo render

[Leaf]

This is my first render with Indigo. There are some strange cracks in the bottom portion of object. I included a screenshot of the wire mesh for reference. There is no geometry in the mesh that should be causing these cracks.

Does anyone know why they are there and how can I fix them? Thanks.

I'm using the following:
WindowsXP
Blender 2.45
indigo_v1.0.4
Blendigo Script v1.04

[Kram1032]

recalculate you normals, maybe, they're inverted