I have two grids in a form that are related via the Data Designer. Simple PO_Header and PO_Detail type stuff. I want to click on a column header in the PO_header grid and have that column sorted, but get the following error: "Command cannot be issued on a table with cursors in table buffering mode".

The Form properties are : Buffermode =0
and DataSession = 2 (Private)

What am I doing wrong?