Quote - There isn't enough information to assess what is causing the render crashes.  Hardware memory is one as mentioned; other causes could be composition of your scene.  

Are there multiple displacement maps used throughout the scene?

Are models/textures very high in resolution?

How many lights are being incorporated to illuminate the scene?

What are your render settings?

There are many variables to consider just to isolate the cause.

Sorry, I almost forgot this post. I still haven't had luck at fixing this issue.

Here are my specks:

Poser 8, Windows 7 home premium, 64bit, 2.74 gig usable ram, I haven't used displacement, just normal bump maps. I am using 4 g2 figures with hair made in the hair room. There are 5 lights and raytrace is on. I am using the auto settings for render at the best setting with lowest post filter size. Exposure is 1.60.

I am using the D3D perfect script to make the figures look more real.

I noticed it seems to crash while loading the first figures texture to render. But that is the first thing it says it is doing.