I just started to do the first Labels and Tables Tutorial of AutoCAD Civil 3D 2013 => Tutorial: Preparing to Annotate a Drawing => Exercise 1: Attaching Drawings as Xrefs for Annotation. I followed the Steps 1 thru 9 and I don't have the "Drawing with multiple externally referenced drawings" appeared on the "Labels-1a.dwg" I used - see the attached file. I saw the "Invalid" flashing on the screen, after I completed the Step 9 (clicked "OK"). I have no ideas why it did not work for me. Please kindly help, advise and respond.