square missing parts of render

Hi

When I render in poser pro 2014 the larger I make the image for render, more parts of the image are missing please see the attached..

poser3_0001.png image is a new window i opened and just rendered it to test and its the same
I’m using in the render movie settings

Image files, preview,
Even just a default setup renders the same
I tried every setting with no luck..
Thank you for any help, tom