Quote - "I have UVMapper, but I'm not sure how to use it to clean up a model; can you give me any pointers with that?"

Sure.  I run the three routines circled in red when I have a problem model.  I'm no guru with this stuff, but it seems to work frequently.

Aargh. I have the free UV mapper, not the $60 one. Thanks for the advice, though; when I can afford the Pro version, I'll probably get it.

Guy