I have just received a Vodafone TV set top box.  The audio by default in Netflix is Original English 5.1.  Whenever I am watching Netflix the audio is distorted and high pitched.  The only way I can stop it is when I change the audio to original English (not 5.1).  When I choose to watch another show I still need to change it from Original English 5.1 to Original English and that's also for every episode of a series. That's a real pain in 'A'.  I have searched other forums and this issue has been around for a couple of years or more but with no resolve.  Has anyone here found a fix yet?