I'm having exactly the same issue.
var myChart = new FusionCharts("/FushionWidgets/Charts/Gantt.swf", "myChartId", "100%", "600", "0", "1");
var webLink = "/GetChartData.aspx?type=" + getQuerystring('type') + "_" + getProjectId();
myChart.setDataURL(webLink);
myChart.render("chartdiv");
Just looking for the best way to keep all the column headers the exact same width.
Chart.xml