We are using DOA v 4.0.7.1, Delphi 5 and Oracle 9. Sometimes we have the following problem: when a tdataset is connected to a dbgrid (via datasource) and the query retrieves 0 of 1 row, the vertical scrollbar of the dbgrid dissapears. After re-execution of the same query and the result is more dan 1 row (!)....the scrollbar doensn't appear (is still not visible) ??? Is this an known bug?