I had the same issue on my ATI Rage, and now that I moved to a GeForce card, it no longer has that issue.

It was certainly odd, though, because it did not give that issue with every model, and of course it rendered just fine, so I didn't really mind much, but it was nice when I found that OpenGL fixed it.

 

Currently using Poser Pro 2012 (Display Units = feet)

AMD Phenom II 3.2ghz (6 cores)

8gb RAM

Windows 10 Pro 64bit