Like I said yesterday, I was having problem when dropping my report form object in a form because a field was added automatically in my grid when opening the form.
So, I decided to get rid of the form and only instantiate the report form object at run time.
Same result, a field is added automatically at the beginning of my grid.
At design time, I have 3 columns. When I instantiate the report form object at run time, I have 4 because of the fuc... field being added in Column 0.
ARRRGGGGGHHHHHH!