Whoops.  Sorry that I hadn't replied to this before.

Yes, cheques are fine in the UK.  Also EBAN numbers are fine in the EU.

I'm also now on version 008.  CJ has a load of controllers and a couple wouldn't work.  It was a timing issue.  I inserted a couple of NOPs after the ACK line is pulled low.  Identical controllers too, one would work, one wouldn't.  Thing is that they're all made in China, and they make small changes/use different firmware without telling anyone.