This subject was covered recently and I gave a work around for the problem.

You can find it here: www.renderosity.com/mod/forumpro/showthread.php?message_id=2873357

The solution is in about post 15 of the above thread by the way.

The main thing is to....  switch off show background image prior to rendering.

Hope this helps.

"You don't have to be mad to use Poser... but it helps"