I'm taking a stab in the dark here, because ou didn't say how you came about to be opening Poser. Did you double click on someones PZ3 file, which is associated with poser, thus opens Poser when double clicked? If so, this PZ3 may have a super huge window for the scene. To top that off, maybe the PZ3 referred to OBJ's you don't have, or have in a different folder. If all of the above is the case, then open Poser normally, then load the PZ3 through it and see what happens. If it doesn't show up again, leaving no scene window, then open up the PZ3 in a txt editor and look for errors (IF you're familiar with the interiors of a PZ3 that is...) There is also a utility called PZ3toCR2. Use it, changin the PZ3 to a CR2 file and try opening it in Poser that way.