Just in case anyone is reading this: it turned out that the problem was that i had PhysX enabled. I switched it to CPU (and disabled SLI of course) and it seems it is working now. It still crashes sometimes when I have directlighting enabled (instead of pathtracing or PMC), but I didn't test it ...

Hi,

I am having the same problem. Did anyone find any solution to this perhaps? BTW: all my PU temperatures (GPUs and CPU) don't get above 50°, so this shouldn't be a problem.

Thanks,
Mitja

Hi,

It's been a while since the last reply, however, I am still curious how is it going in regards to animation of material properties. For example:
-animating lights (fading them in and out). I have only been able to find this http://www.refractivesoftware.com/forum/viewtopic.php?f=21&t=7590 ...