I'm having big problems rendering a car in mental ray.
Mental Ray keeps crashing every time i try to render.
Some times it's out of memory and some time it just crashes.
I'm rendering at 512x389 resolution, 700k polys in the scene.
Samples are at 1/4 and 4, final gather is on lowest settings. Conserve memory is turned on.I used simple car paint mat, metal mat and two glass materials for the scene.
I've played with numerous settings and nothing worked, well actually i manage to render one time out of 50 or more.

My machine:
Intel core duo 1.6ghz
4gb / 800mhz ram
900gb disks
Gforce 8600gt

I have enough of ram so i really don't understand that "out of memory" crash...

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The secret of creativity is knowing how to hide your sources.
-Albert Einstein