Problem Printing from SAPBusinessObjects.WPF.Viewer

C# WPF application, Visual Studio 2010 ,CR version 13

everything except the print button works, I can export copy, etc. Just not print.

code to make Viewer

            reportViewer = new CrystalReportsViewer();

            reportViewer.Owner = GetWindow(this);

            reportViewer.Name = "CrystalReport";

            reportViewer.ShowLogo = false;

            reportViewer.ShowToolbar = true;

            reportViewer.ShowOpenFileButton = false;

            reportViewer.ViewerCore.ReportSource = report;

            reportViewer.ToggleSidePanel = SAPBusinessObjects.WPF.Viewer.Constants.SidePanelKind.None;

When I click the Print button on the toolbar it says "No printers are configured. Please configure a printer on the system before printing."

I have 4 network printers on my machine, and a default printer is selected.

How do I make it popup a printer dialog box for the user to select the desired printer/printer options/page options, and then print.

Thanks!