Maybe it's a memory issue? Poser is a memory hog and it does some pretty weird things on me when it's running low on memory. Does it ever do it after a reboot or is it after you've been in Poser for awhile?

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi