I'm not crashing with P8 Mac on an 8-core Mac Pro... except sometimes when I'm foolish enough to step outside Poser to check my email or something. Then it might crash. Poser does not like you to be unfaithful and look at other women when you're with her! This is true with P7 Mac as well.

But no crashes while rendering or working within the program. Maybe the PC version is more buggy that way, due to wonky video drivers and whatnot.

My frustrations with P8 have to do with the interface and the library. I love how all the panels can be rearranged and docked to have a more efficient workspace. But the price of that is that everything is now too damn small. The text, the buttons, the icons, everything has been shrunk to create more screen real estate for the main preview and render windows.

The flaw with the tiny library icons has been well discussed and will be addressed, though I wish that patch would come out soon. But also, the scroll bar in the library is so narrow has to be difficult to grasp with the mouse. Which is a problem in a library that forces you to do so much manual scrolling. AND the library does not see everything in a folder. Refreshing changes how many items can be seen, but in large folders you still don't get everything. The number of items revealed on each refresh  seems to be random.

These issues force me to most of my work in P7, switching to P8 for its very quick renders on the final hi-res product. I don't like that because the windows get resized and there are "error" messages about unexpected version numbers, but with its out-of-the-gate flaws P8 really leaves me no choice.