Hi All, I have an unexpected problem. My shapefile consists of a number of polygons, and I need to know their areas. I select the ID column in the Attribute Table and start Calculate Geometry. It runs but creates no extra columns, so I cannot see where the areas are. In addition, something happens to the ID field, as the IDs change in some random order. I attach screenshots of the Attribute Table before and after running Calculate Geometry. Could someone help?