Hi to all Rhino-lovers and -sufferers,

something that's been bugging me for a while now:

I'd like to render a realistic 3d model amidst its natural "habitat" i.e. in front of a photography. So I set up a background texture in the perspective viewport (background options), so as to render as a natural backdrop for my product.
The background texture shows up nicely in the modeling viewport.
However, when I try to render (vray), Rhino crashes because of the background texture.

Here's the details:
- Rhino 4 SR5
- Vista 32bit (yeah, shame on me)
- background texture is a jpg file 1280 x 640 px (2:1)

Is this problem simply caused be a Rhino bug? How could it be solved?