I have an older notebook here.
NVidia Geforce G210M
Driver version 342.01, fresh install
Win10/64 1803, fresh install
Rhino6, fresh install
Switching to Raytraced in a viewport only gives a black area.
I can see Cycles working, also the taskmager show corresponding activity.
In the settings, Cycles uses CPU not GPU.
This is the default after Rhino6 installation.
What can be wrong?