Have you set IB_QueryMyDetail.Unidirectional to false?
If so, you should copy&paste much more info about your setup to let us help you.
Are detail keylinks defined, or are you sure IBO can locate uniquely detail records? Just guessing in the dark...
regards
Marco Menardi

--- In IBObjects@y..., "stanw1950" <stanw@e...> wrote:
> I have a master-detail relationship set up between two tib_queries.
> The data for both queries is displayed in grids. The data is shown
> correctly, but when I click on the detail grid, a "dataset cannot
> scroll" message pops up. I want the detail grid to scroll. Why can't
> I scroll in the detail grid? The detail query's key links and master
> links are composite. Thanks in advance. (Delphi 6; Ibo 4.2.i)