I think only 64 bit Poser works. Problem is WIN 8.1 and I would revert to 8 but I have a brand new machine with a WIN 8.1 CD ROM installed.

Good that my WIN 7 machine is still running and I would not even upgrade my WIN 7 machine upgrade to WIN 8.
I have now hazzles with the new Corel Paint Shop Pro X6. Only the 64 bit version works but does not show most of the filters. But can not start the 32 bit version as possible with Photo Shop.
So best is to wait with the update to 8.1 until the have the bugs out.