Sorry Cat I'm afraid it made no difference. I increased all Transport

timeouts and it didn't help. I also tested with different values of
SET MAXIMUM INTERFACE MTU and SET USE SPECIFIED MTU (i.e. I tried with
the
former being 576 and 1500 and the latter being ON), but all to no
avail.

I'm now looking at doing some packet sniffing to try to find out why
squid
works and BM doesn't. I have a temporary work around but I'd like to
fix
it so that everything goes through BM.

Simon