That's why I was curious about markschum's post about the opengl option under the Help menu.  I keep my video drivers fairly up to date -- I haven't installed the ones that just came out, but I have whatever the version is prior to that.  I recently re-installed Poser, and the dialog at the end of the install says that Poser will select sreed or opengl based on what it detects is supported -- and sure enough, when I first ran Poser after install, sreed was selected.

Anyway... if anyone has any advice as to how to chase this down (other than simply installing the latest drivers... again...) I'm all ears!  :)