Mesh display settings

Hey there, I have some issue with mesh display.
I want to show my mesh model with shade, but now I see only with wireframe. How can I change this settings?
Plus I want to hide the polygon edge in the shaded view.

Can someone help me?

Hello - If you make a box in a new file in Rhino and shade the viewport, does that look correct? If you make a MeshBox, does that also look correct?

-Pascal