Warning in Table of Contents

Discussion created by pjhopkin on Nov 16, 2011
Latest reply on Nov 17, 2011 by pjhopkin
There is an interesting quirk in the Table of Contents. In Lesson 1, page 24, I moved the Cities layer in between "Transportation" and "Cities"...it worked ok, but small yellow warning triangles appear next to the Imagery Basemap and Cities layers.  They go away again when I revert to the previous menu configuration...The book says I can ignore them, but what do they signify?