[JML]

Our team had trouble viewing the camera on the default dashboard, viewing it with smart dashboard or another program may be easier. To use smart dashboard, you send the image with the camera server class (we don't use automatic capture so we can set the frame rate)

 int count = 0;

	public void teleopPeriodic() {
		currentTime = Timer.getMatchTime();
		if (count > 3) {
			NIVision.IMAQdxGrab(session, frame, 1);
			CameraServer.getInstance().setImage(frame);
			lastUpdateTime = currentTime;
			count = 0;

		}
		count += 1;
        }

Edit: You also need to hit the play button for it to play on the Default Dashboard