Rendering crashes with "system fault: bad memory access" warning.

Hi all,

I am trying to render various views of a model using AECOsim Building Designer v8i (Select Series 5) version, however it constantly crashes during the preprocessing stage of the render. After aborting the programme, I then get a "System fault: bad memory access" warning. I was wondering if there was something I could do to stop this happening? The same thing is happening to a colleague of mine who is working on a different file. 

The models that we are trying to render views of are quite large, yet the computers have 24GB of RAM available and are both 64-bit Windows 7 Operating Systems. I have attached an image of the dialogue box that appears when trying to render.

Any help would be much appreciated.