[mod_python] Apache doesn't start after new mod_python install (3.1.3)

I was previously running Apache 2.0.47 with mod_python 3.0.3.  Today, I 
upgraded to mod_python 3.1.3, and not apache does not start.  No errors 
are reported - it just doesn't start.  If I remove the LoadModule 
directive, apache starts up fine.  Any ideas?

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Nick