I think it has something to do with this new patch. I'm on a Mac, by the way. I ended up with a 1200x1200. No way was a 2058x2048 going to work. I got plenty of memory attached to Poser too. I know the larger size has worked before, so I don't know what's up. The only thing different is the patch ... so ... The reason for the need of the largest format possible is that the figure is Venom from Earth X and she has a zillion veins all over her and I wanted them as a sharp as possible.