Just to add a little more to the above - I seem to get a connection for about 30 seconds. I know ping is meant to be unreliable with barry, but I can ping a server by domain name (so dns is working fine), and the ping eventually times out after about 30 secs or so - coincidentally at exactly the same time as the BB browser dialog appears - so it seems that the BB is unmounting and remounting or something.

Any suggestions greatly appreciated - I'm heading back to a hotel on Monday so would really like this up and running by then