Johannes,

> This unluckily did not work also. We thought it worked. But
> these where new accounts with NEW foreing entries. When we
> moved back to the more than one entry that was linked to the
> same foreign entriy THEN the error comes back again.

> We really don'y know how to get past this one.

Please do try the TIB_MonitorDialog. Connect it to your
database/connection and watch what is actually going to your
database. (You may have to adjust the various options to
get useful output.)

If you can see that it is indeed sending the expected output
to the database then there is something in your database
structure causing the problem. If you can see that the
output does not match expectation then we can try to isolate
the reason.

--
Geoff Worboys
Telesis Computing