When you export from Poser you have an option window that pops up including a bunch of options about the mesh. The last patch seems to have "stuck" these options on my screen, to a default that keeps each object as a separate group, but loses the group names (Group1-x is the "body" of the figure, 2-x is the hair, 3-x is clothing item one, etc.) It's confusing, but it works... ;-)