Added bulllets to all data that's not there

I'm using code to render / export a ReportingServices report to PowerPoint using Aspose.Slides for Reporting Services. I've pasted the code below. But when I execute the code, it puts 'bullets' before all data points (including table / column headers, and the report title). If I view the report and click Export > PowerPoint.... it doesn't contain them.

Is there a setting I missed when cloning the slides that's adding in these bullets?

Thanks,

Chris

string s_rptType = "ASPPT";

Warning[] warnings = null;

RenderingExtension[] exts = ReportViewer1.ServerReport.ListRenderingExtensions();

// render the report

byte[] bytes = this.ReportViewer1.ServerReport.Render(

s_rptType, null, out mimeType, out encoding, out extension,

out streamids, out warnings);