Found the solution: As it turns out it appears it had something to do with the Adobe AIR version, which had been modified by another small app I downloaded unrelated to Poser.

In case anyone runs into this problem, uninstall AIR using the Adobe-provided uninstaller, reinstall from the version that came with the original Poser Pro installer. Make sure you also get rid off the com.SmithMicro.plist files inside your User/Library/Preferences/  which will be rebuilt the next time you start up Poser Pro. Somehow it appears it affects the export. After this the export went flawless.

Sent bug notice to Smith Micro and how I solve it. It only took 9 hours to figure out. 

Have a nice 2011. 

First and last post ever. Back to "stealth mode" and never open my yap again. God forbid. 

What an arrogant, completely douche bag reply from a complete estranger. 

YES, a "professional" program should not rely on such a ever-changing 3rd party "solution" like Flash, which may be ok for browsrers but certainly not ok to be used WITHIN a "professional" program. It is simply lazyness and poor form in the part of Smith Micro and bound to create one problem after another. 

And I develop Flash. For 7 years now. AS3 and all. 

NORM NUMBER 1 OF ALL FORUM ETIQUETTE: If you you DO NOT have a proper response to the subject at hand DON'T SAY ANYTHING. 

You stupid nitwit. Always the "smart ass" thinking every poster here is a 3rd grade teacher using a computer for the first time. 

Hey Octavio: WHile I can understand your ethos on "live and let live", this guys is beyond anything I have ever encountered in the net. He flamed me (or someone acting as him) 13 times in 10 minutes for expressing my opinion. I say the should ban this guy on the spot. Period.

Dill: I got two words for you: Reform Party. I hear Pat needs some help desperately. Angry people should apply. canary100