I turned Whitewater on today and Bigfoot's head initially kept spinning. I went into the Bigfoot test mode and into the opto test and Bigfoot opto 1 was not registering, but then started working. Played a few games and the error came up again. I ran the test again and the opto was registering, but then stopped 10-15 seconds into the test? The test shows the issue is with opto one. Any suggestions?