Designtime Column Headers Not Displaying

I have the following columnheaders set and visible at designtime:

      ColumnHeaders.Strings = (
        'Recovery Amount'

When I run the app, my column headers are A, B, C,.....  Am I missing a setting?

Is this TAdvStringGrid or TAdvSpreadGrid?
If this is TAdvStringGrid, I cannot see such issue. If this is TAdvSpreadGrid, please set grid.AutoHeaders = false.