> Should I set up a Transaction Component as well?

Yes. The default transaction is there for to make it simpler for
simple applications, but should not be relied on for more advanced
purposes. IMO it is always best to be explicit.

It is a curious problem that you are getting, I wonder if your
application is holding a transaction open for all that time? (Another
reason for using your own transaction so you can explicitly commit it
when finished a section of work.)

Could it be that your connection is dropping for some reason? Perhaps
the server has been restarted (check the interbase.log file in the
ib/fb installation directory).

Jason has a base service application available that may offer you some
help.

> I also suspect the app is leaking memory....but cannot confirm this.

To the best of my knowledge there are no memory leaks inherent in the
IBO components. I use a program called MemProof, but I am not sure
if/how this could be used with a service app.

--
Geoff Worboys - TeamIBO
Telesis Computing