John

Yes that is possible - will check it out at the weekend.

Many Thanks

>Andrew
>
>Is it possible that your composite key can be changed during your edit- i.e. one of the key fields gets edited and saved by some other process between loading and saving the record? If so, there may be no matching record to update.
>
>Is there any chance you can add an (autoincrementing) primary key?
>
>Regards
>
>j.R