Diagnostic Information... Click on the Diagnostic Information... item in the File menu for diagnostic information compiled by the CDA Viewer while processing the file for display. The Diagnostic Information... menu item is not highlighted if no diagnostic messages were reported while processing the file for display. For information related to the Diagnostic Information... menu item, double click on an item from the list of additional topics below. Additional topics: * Overview of the CDA Viewer * Document Information... * Open... * Close File * Exit * Using the CDA Viewer Window * Opening a File