If rendering to the internal window, I think you have to use export image instead, this will not save it as a pz3 I think. Somtimes, when saving an image from an external window sometimes poser 5 hides the save window behind the image and I have to click on the program in the windows open applications bar and this brings it around and I can save the image and continue working. This also works for me when poser hangs sometimes. Just something I noticed.