I get the problem when after a few hours I want to render and it just doesn't do it. In fact last night I had a scene set up and it took me quite a while to get everything right, I though I will just do a quick render with the basic setting to see what it all looks before I save it. Well now poser didn't want to render, in fact Poser just hung there, every other application worked, just when I went back to the poser screen everytime I tried to click on something all I hear is that stupidass ding. So of course I cannot save my scene in fact the only thing I can do is hit cntr+alt+del and end task for the poser program. If I want to render anything after this happens then I would have reboot. But after a few of the posts of similar things happening , maybe it is a virtual memory thing. I will have to get another hard drive, but I dont have any ide slots left. Is there an addon card that can let me install more hard drives?