Hi Neil,
The first thing to do is to find out the exact version of software that your B2 is running on.
If you use the B2 remote control, press the 'Info' button twice and you should see on the B2 display panel a line showing 'Version ............'
It will show eiher 'B2 <a date>' or 'B2B <a date>'.
The easier path is if your version is 'B2B <a date>'
If you post the exact details of this version field, then we can advise you further.
Regards,
Peter.