.... rendering in poser or in the queue manager and closing poser? (of course all other things being equal). I figure the information for the scene takes up the same memory, and the renderer itself, but what about the actual programs? I would tink that poser would need more memory that queue manager. Is this the case? Where I have so little memory am I better off doing most of my renders in qm? Or is there so little difference that it really doesn't matter?

I would start task manager(right click on tray windows) and check to see how much memory is being used whem poser is not doing a render