Peter:Pretty sure you need a dealer to do this. The screen uses a different Panasonic remote during set up - I do have the Mk2 service manual but it will be useless without either the remote or the software tool.
This is where it gets rather amusing. B&O refer to the 'no name remote' which is in fact a panasonic! if you can find yourself one of those
Hold vol- on teh screen and press the status button on the remote three times and that gets you into service. You may find though that its the BS3 which is 'adjusting' the picture, in which case you need the BS3 software- so its the dealer i afraid