It sounds like the problem I had before uninstalling Quicktime.  If you have Quicktime on your system, try uninstalling it and see if poser runs better.

If it Quicktime and you need something to play Qt movies, here's a replacement: http://en.wikipedia.org/wiki/VLC_media_player.  VLC works like a charm and nevers bothers you to upgrade to Quicktime Pro. ^__^ V,,

I cannot save the world. Only my little piece of it. If we all act together, we can save the world.--Nelson Mandela
An  inconsistent hobgoblin is the fool of little minds
Taking "Just do it" to a whole new level!