Texture export failure

When exporting my project I am getting an error;
File "C:"Python25\Scripts\prp_MatClasses.py", line 419, in FromBlenderMTex if mface.uv and mface.mode & Blender.Mesh.FaceModes{"TWOSIDE"]:
ValueError: face has no texture values
The problem is that I have over 97000 faces, how do I find out which one does not have a texture? Is there an easy way to identify the face with the error?
File "C:"Python25\Scripts\prp_MatClasses.py", line 419, in FromBlenderMTex if mface.uv and mface.mode & Blender.Mesh.FaceModes{"TWOSIDE"]:
ValueError: face has no texture values
The problem is that I have over 97000 faces, how do I find out which one does not have a texture? Is there an easy way to identify the face with the error?