Maybe a little misunderstanding because of language. I can chose which graphics card launch the program. Here are pictures (perhaps will be more clear) As I right click:
in this picture, I chose to start the program with the nvidia graphics card. In this case, I have my black screen preview problem
And if i chose the other
in this picture, I chose to start the program with the onboard graphics card. In this case, I don't have any problem, all work correctly.
My question is, why my nvidia graphics card causes the black preview screen issue ?