I have a document on sharecg that shows some of the modelling issues for Poser

http://www.sharecg.com/v/22750/view/Text-Entry-Tutorial/modelling-for-Poser

I would be happy to have a look at one of your models and see if I can spot any problems. I have Poser 7.

 

A note here: if you are using Displacement rather than bump you need to be vey careful with the map or things break.