I have updated all the drivers from NVIDIA website.
Here's the latest versions installed on my computer :
NVIDIA Web Driver 346.03.15f04
CUDA Driver 8.0.46
My version of After Effects is 188.8.131.52
And My OS X version is 10.11.6
I have check again today, After Effects still see the Quadro FX 4800 as shown on the screen capture but it's impossible to select the GPU.
Thank you for any help you can give to resolve this problem.
No Roei, i can't, it remains grey, just like the GPU in the drop-down menu.
I did contact the online chat support, but after the agent start answering me, i had no more answers and the chat window was indicating "Agent typing..." and nothing happened for more than 1 hour.
I will try again.
Thank you a lot for your help, i think there's something weird happening here.