You can try to get the graphics card out of the equation by operating in "Software OpenGL" mode. Close all files in SW that might be open, then Tools> Options> Performance, and enable "use software OpenGL". If you can do your work with this enabled, then your graphics card is the issue.
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read faq731-376 to make the best use of these Forums?