Dave-So, I had the same problem when moving from the Pose room to Face room and back, face dialogs I couldn't do anything with and pose parameter dial list in the face room that wouldn't close. I had to close Poser and restart it again. I'm in XP Home, without SP1 (but I'm patched up through its release for security holes) on a P4 1.7GHz 512MB ram, Nvidia 32MB TNT2 based card running not too fresh (but stable in all other apps) Detonator drivers.

Poser 5 has hung on me once and had this corruption problem once with dialogs that forced a restart so far. But I've only run it about six times so far.