> Thanks for the quick reply.
> I forgot to say that other users who have exactly the same setup do have
> this trigger, so somehow it must have been possible to create it.
> No idea though how.

Identical computers tend to work identically or fail completely. Are you sure these other users have Dialect 1 databases and the exact same Firebird version? And that no other software has updated your Firebird server to Firebird 2 (sometimes new and optimistic developers assume they can just upgrade Firebird if they encounter an old version and their program require a newer version)?

Set