Thanks Taushanov,

 That worked when I upgraded the version to 8.2.

 Now I have a different problem. I was controlling the display of points thru my code. Here it is.

Series1.PEs.Add(new PaintElement(Color.DarkBlue));

ScatterChartAppearance)CL1.ChartTypeAppearance).Icon = SymbolIcon.Character;((ScatterChartAppearance)CL1.ChartTypeAppearance).Character = '*';

ScatterChartAppearance)CL1.ChartTypeAppearance).CharacterFont = new Font("Tahoma", 8, FontStyle.Regular , GraphicsUnit.Point);

But even since I upgraded these settings does not apply. What could be the reason ?

 Now I get the datapoints displayed in Green rather than dark blue as it was prior to the upgrade.

Thanks.