Thanks Geoff,
checking the callstack, I can now see that the problem is in a
detail query's AfterPost handler trying to modify the master query.
I'll look into this further.

Thanks for the tip.

Cheers,
Steve - TeamDumbo

> Perhaps posting the details of the callstack when the cannot edit
> current row occurs may help us to see what is happening.
>
> --
> Geoff Worboys - TeamIBO
> Telesis Computing