> The thing is that other applications (clients) also get an
> error "connection lost", and in the log file on the server I find
> that the guardian has restarted the server.

There could be a number of reasons why the 'connection is
lost'. Starting point would be - is it happening on
particular machines, or every one, that is can you change
the routing and get a different result.

> Another post on the web mentioned that the 10054 error was related
> to network problems, but we have just moved to a new building where
> our CAT5e cabling was certified and our servers all have new 3Com
> adapters, so I doubt if there are any network problems.

You may doubt it, but don't rule it out. If it is a new
configuration, then are the routers set up, how do you get
from A to B, and as I said above - is it location specific.

>>From the posts I have found on the Internet I know there are many of
> you out there who have seen this error as well, but is there anyone
> out there who has a solution (that works) to this problem?

Not using British Telecom was one of our solutions, THEY
guaranteed network availability - but forgot to set up the
routers! I had made a LOT of code changes before BT accepted
that it was their problem, so I would suggest that you
eliminate the obviously correct before going for the obscure <g>

--
Lester Caine
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L.S.Caine Electronic Services