I must admit that some of the things folks have suggested are stretching my technical expertise...or lack there of. But, I do know how to search for files as was suggested and...
I am able to recreate the problem before a .WAV file is generated.
Those TEMPMAIN. files are not duplicated.

I'm working with PG support on this as well.

Thanks for your help, I'm gonna try some of the other suggestions now....

Oh well.