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 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.