Index: Core/Components/src/Core.Components.DotSpatial.Forms/DotSpatialMap.cs
===================================================================
diff -u -r13760a0b773a8848cc0c53d39c0696f47776168b -r875d329b28c816293fbf2aa57d6c2f833e67b81c
--- Core/Components/src/Core.Components.DotSpatial.Forms/DotSpatialMap.cs	(.../DotSpatialMap.cs)	(revision 13760a0b773a8848cc0c53d39c0696f47776168b)
+++ Core/Components/src/Core.Components.DotSpatial.Forms/DotSpatialMap.cs	(.../DotSpatialMap.cs)	(revision 875d329b28c816293fbf2aa57d6c2f833e67b81c)
@@ -48,7 +48,7 @@
                 var x = ViewExtents.Center.X;
                 var y = ViewExtents.Center.Y;
                 var newExtents = new Extent(x - minExt/2, y - minExt/2, x + minExt/2, y + minExt/2); // resize to stay above the minExt
-                if (!ViewExtents.Equals(newExtents))
+                if (!ExtentEquals(ViewExtents, newExtents))
                 {
                     ViewExtents = newExtents;
                 }
@@ -57,6 +57,31 @@
             base.OnViewExtentsChanged(sender, args);
         }
 
+        private static bool ExtentEquals(IExtent obj, IExtent other)
+        {
+            if (obj == null || other == null)
+            {
+                return false;
+            }
+            if (Math.Abs(obj.MinX - other.MinX) > minExt)
+            {
+                return false;
+            }
+            if (Math.Abs(obj.MaxX - other.MaxX) > minExt)
+            {
+                return false;
+            }
+            if (Math.Abs(obj.MinY - other.MinY) > minExt)
+            {
+                return false;
+            }
+            if (Math.Abs(obj.MaxY - other.MaxY) > minExt)
+            {
+                return false;
+            }
+            return true;
+        }
+
         private static double RoundDouble(double value, int numberOfDecimalPlaces)
         {
             return IsSpecialDoubleValue(value) ?