Actually, I unchecked that box, shut down Poser, took my newly created OBJ file and re-conformed it using ConCloth.  I then opened Poser and attempted to conform my OBJ to M3.  It did so without an error messages (so far as once the error message popped up a few minutes after I conformed my OBJ to M3 on my other computer.  don't know if it did so because that computer is notoriously slow). 

It's been a few minutes since I did so and no error messages.  I think your first suggestion was the source of the problem particularly since I haven't added any new Runtimes in over a year and this problem just happened yesterday, coincidentally when I installed the M3 SR1 update and M4.

Thanks so much for your help nruddock, it's greatly appreciated.  :)

-J

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