But, in my testing so far it seems that the updated Nvidia Web Driver (download from Nvidia see links below) is helpful, so proceed with caution. Probably the best option is NOT TO INSTALL any of the new Nvidia drivers and just wait for Apple to update High Sierra with whatever new drivers they build/get for Nvidia. It seems that FCPx 10.3.4 and Nvidia GeForce GT 650M do not like each other.
