I've had two open at the same time but wasn't testing rendering. I was just doing it to open a previously saved model to get it's mat into the presets and use again. And after I posted the last message I got to thinking how I just accept that if I'm doing a cloth simulation in Poser 5 I go away and do something else for an hour or so (housework? nah... usually something much less useful ;) Just thinking it was odd that I was upset that the new Bryce inflicts time away from the computer on me when I accept it in other programs.