Do you guys know how multi thread rendering works? Does a 2 thread render require twice as much ram as  a single thread?

I have a similar system and have made the same observations as Tomsde;  I tried to render a
2500 X 2000 picture of a 150 Mbyte scene, first with 4 threads, then with 2, and Poser crashed to desktop every time. Worked ok with single thread render, and somewhat faster than P6. I am using the 32 bit version of Windows XP, and I think I read somewhere that there isn’t much point in adding ram above 2 Gbyte unless you upgrade to a 64 bit operating system? But Poser is still a 32 bit app, so…?

I think the slow delete process must have something to do with P7’s improved undo functionality; in earlier versions of Poser you couldn’t undo deletes. Poser must store the deleted object in some temporary undo buffer, and that takes time, especially with the dense meshes most people are using these days.

Except for  the mentioned problems P7 has been remarkably stable and reliable for me.