Im recently trying out the connection.After I Install it I try it out, and when i type Grashhoper on Rhino it crashes, Before that i didn't have any problem with grasshopper whatsoever. I had to uninstall the connection to have grashopper working again, I reached in the rhino and grashopper forums and they say that is a graphisoft problem.
Important to mention that im doing this on a Bootcamp Macbook Pro Mid 2012
I have Archiad 20 EduLicence
Rhino 5.5
In Windows 10 64x
