When you manage to get the right resolution and the problem still appears, then you probably didnt run Duelit as admin when running NOX as admin.
Only used it as a temp fix since i saw it come up in a other post.
Testing now; Nox and duel both on admin rights.
Res set to width 410, height 683 in nox & registry.
Speed on direct x, tried open gl.
Erorr with the res, way more off now.