Index: Constructor/Operations/AirfieldSettingsForm.cs
===================================================================
--- Constructor/Operations/AirfieldSettingsForm.cs  (revision 6257)
+++ Constructor/Operations/AirfieldSettingsForm.cs  (working copy)
@@ -28,13 +28,17 @@
             settings.AddVar("courses", new StringTableVariable(courses_dataGridView));
             settings.Read();

-            names_dataGridView.Rows.Add();
-            names_dataGridView.Rows.Add();
+            for (int i = 2; i != names_dataGridView.RowCount; )
+                names_dataGridView.Rows.RemoveAt(i);
+            while (names_dataGridView.RowCount < 2)
+                names_dataGridView.Rows.Add();
             names_dataGridView[0, 0].Value = "en";
             names_dataGridView[0, 1].Value = "ru";

-            callsigns_dataGridView.Rows.Add();
-            callsigns_dataGridView.Rows.Add();
+            for (int i = 2; i != callsigns_dataGridView.RowCount; )
+                callsigns_dataGridView.Rows.RemoveAt(i);
+            while (callsigns_dataGridView.RowCount < 2)
+                callsigns_dataGridView.Rows.Add();
             callsigns_dataGridView[0, 0].Value = "USSR";
             callsigns_dataGridView[0, 1].Value = "NATO";
         }