Explaining better:
I've created the chart in a Windows Form of .Net Framework 1.1. Set up several properties (there are 2 charts, a bar and a line chart) and everything gone OK. When set up the header text of both charts (the legend of line chart cause the same), on runtime, while drawing the charts, the component tries to convert the text property to double, and obviously gets an exception (catch in call stack).
Testing, i create a new form and insert a chart only changing the text header: the same problem.
Thank you
Thiago