Having a bit of bother with Draftsight. I decided to upgrade last week to 2016 having used a version from circa 2013 successfully alongside Solidworks for 3 years.
The problem i'm hving is as follows. I open Draftsight, no problems. Move my cursor to the model space and it disappears (like it has gone behind the model space) it will then reappear if i move it back to the tool bars etc. If I load an existing drawing, none of the geometry is visible or selectable in any of the view tabs, however, if i print preview it is all there!!!
I have updated my GPU Driver (Quadro K300), reinstalled Draftsight multiple times... turned my laptop on and off etc etc