**Troubleshooting**
===== Video only in one eye =====
Make sure that the Mono/Stereo button on the goggle control box is in the correct position.
  * To see the same image in both eyes it should be in the Mono position
  * To see a different video image in each eye the switch should be in the Stereo position.

If you have stereo input, make sure that both video signals are active and properly connected (see [[biac:troubleshooting:stimulus_control_system:video:goggles:no_video|checking goggle inputs]]).

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