Picked up my copy in ASDA today. The checkout girl told me that she had to advise all customers that there was a problem with the sound and they had had lots of copies returned. However she couldn't tell me what the problem was but anyway i told her I knew about the 'problem' and that it wasn't really a 'problem' But i'm sure there are lots of non technical people who wouldnt understand that they have to select the correct sound mode.