I was talking to a buddy about these memory issues yesterday, and he pointed out that it would be a good idea to enable the /3GB switch in XP's boot.ini. That will move all of the Windows system DLL's out of the lower parts of Poser's virtual address space, allowing to have more of the space for its own allocations. It's not much, but it's some. Does anyone know if P5 or P6 were linked with /LARGEADDRESSAWARE ?