>>I thought 4 had them - but they were very flaky and practically unusable.

If they were so bad why would Boston/Philly Stock Exchange chosen InterBase and
made specific use
of them in their applications. I think your reference to "problems" probably
referred to delphi component
that was originally made available to access them, which wasn't too hot.

>>They were introduced in IB3.

InterBase 3.0 to be specific.

Paul