well that's impossible (until you're a Mac OSX developer or a good friend of SJ): the current (public) version is 10.6.4gariba wrote:No, I'm running 10.6.8 in all machines...

someone has reported an issue after updating to the very last OSX version, I'm running fine with 10.6.3 and CUDA 3.1.10
have you installed CUDA drivers + CUDA toolkit + Octane in this precise order? If so try to uninstall everything and reinstall. if still doesn't work please post any additional info on your machine, OS, CUDA and Octane version
if you search in the forums you'll probably find someone else who had the similar problem some times ago (I can't remember exactly right now, sorry)
good luck and let us know if it works
EDIT - just found the 10.6.4 thread (in the customers forum): the new 3.1.10 CUDA driver seems to have solved the problem