Just updated to Mac OS 10.6.8 Had the same issue as above but I installed from the link that was posted above and still couldn’t get results so I called black magic. Didn’t even have to explain the situation.
So to fix it you head over to Nvidia’s website and download the new driver for Quadro 4000 for mac 256.02.25
https://www.nvidia.com/object/quadro-macosx-256.02.25f01-driver.html
then you need to download from a link down on the left that says “nvidia driver for mac”
This one.
https://www.nvidia.com/object/macosx-cuda-3.2.17-driver.html
He said you first install 3.2.17 which doesn’t require a restart and then 256.02.25 which may or may not. Then you should be good!