This question already has an answer here:
So I have a problem with my VirtualBox Windows 7 64 guest. It seems that it does not recognize the GPU.
While researching the problem I cam across this post .... Enable CUDA GPU working under VM ... underneath the post is a message about this post being a duplicate and that the answer is elsewhere.
So here is my question... If you are going to claim that a question is answered some place on the system why not put a link to that answer?
How are we supposed to get assistance if you block one question from being answered yet do not provide with a location where the problem is resolved?
I still have my problem but have no clear path to find the answer.