Symptoms

- When running the Unity application in “Force DirectX > OpenGL conversion” or quadbuffer stereoscopy, the viewports’ border pixels don’t have the right color.

Causes

Something must be wrong in the Nvidia driver configuration, especially the anti-aliasing may be forced.

Troubleshooting

Set the value “Antialiasing – Mode” to “Off” in the section “Manage 3D settings” of the Nvidia control panel.

Other causes

- Your graphics drivers can be in a corrupted state. See article “Reinstall the graphics drivers”.