I remember Anton announcing a few months ago that the problem was caused by the nostril geometry itself. He even posted a preview pic of Vicky 3 to demonstrate that her nostrils were fixed.

Ah, here it is:
http://www.renderosity.com/messages.ez?Form.ShowMessage=860341

Interesting how many of the same questions and remarks now being made about Vicky 3 (joint parameters, morph and texture compatibility, clothing) were brought up in that thread ....