Is this when / while you are rendering? Reason I ask is, I get this as well - while rendering. However this is because the render is not finished and Poser is grabbing every bit of memory it can get it's grubby lil processes on... and that means there is no memory left to update your screen when it's rendering. When the render is finished, or even if it moves on to the next box it's rendering, it will update your screen. It hasn't really crashed - even if it often says it's 'Not responding'. It's just using so much memory, and nothing is happening for long enough... that Windows thinks it has crashed... Usually happens if the render contains a ton of stuff it has to calculate. Hair, shadows, raytracing, athmosphere... they all make it seem like everything has stopped working, when in reality there is a frenzy of calculation going on in the background.

Silke