====== Problem: Flickering Viewports ======

The symptoms consist of:
  * Flickering viewports when trying to draw or drag geometry around
  * Certain viewports showing up in the wrong place (i.e. the Perspective view shows up where the Top view is and vice versa)
  * Picking not correctly selecting the right piece of geometry
  * Possibly others.

**//Contact [[tech@mcneel.com|Technical Support]] by email  and include the following://**
  * Version of Rhino & service release date
  * Version of Windows
  * Description of the exact problem you have
  * What you do to reproduce the problem.
  * Screen capture of problem
  * Screen Capture for Rhino Options -> View -> OpenGL dialog
  * Make/model of graphics card
  * Your phone number and good time to call.