Toshiba Satellite P855-32V
This thing has 2 graphic adapters, internal and NVidia 640.
32bit Rhino works as expected.
64bit graphics doesn’t work:
We can load a file, and it it is shown.
Switching the shade mode works immediately.
Zoom, Pan etc. does not show a result.
Also drawing a line etc. does not show anything.
In the Rhino settings, the NVidia OpenGL is present.
In the NVidia manager, Rhino.exe is set to use the NVidia adapter.
I know you said the GPU is being used but can you post a screen shot of the OpenGL page in Options>Rhino Options>View>OpenGL. My first thought is to check for a more recent driver.
Thanks Charles for letting me know what worked here. Do you recall what area on the Nvidia options needed to have the “Let the 3D app decide” option set?