Index: Core/Gui/src/Core.Gui/Forms/Log/MessageWindow.cs
===================================================================
diff -u -r0619b0f5ad27c9042518823db3e2da8def7a6df5 -rfae4167c32bb9e1a19ce3908bb84e868979af7f2
--- Core/Gui/src/Core.Gui/Forms/Log/MessageWindow.cs	(.../MessageWindow.cs)	(revision 0619b0f5ad27c9042518823db3e2da8def7a6df5)
+++ Core/Gui/src/Core.Gui/Forms/Log/MessageWindow.cs	(.../MessageWindow.cs)	(revision fae4167c32bb9e1a19ce3908bb84e868979af7f2)
@@ -48,7 +48,7 @@
 
         private static readonly Color errorLevelColor = Color.Red;
         private static readonly Color warningLevelColor = Color.Orange;
-        private static readonly Color informationLevelColor = Color.LightGray;  
+        private static readonly Color informationLevelColor = Color.LightGray;
         private static readonly Color debugLevelColor = Color.FromArgb(0, 139, 191);
 
         private static readonly PrivateFontCollection privateFontCollection = new PrivateFontCollection();
@@ -383,7 +383,16 @@
         private void ButtonCopyClick(object sender, EventArgs e)
         {
             copying = true;
+
+            var currencyManager = (CurrencyManager) BindingContext[messagesDataGridView.DataSource];
+            currencyManager.SuspendBinding();
+            messagesDataGridView.Columns[levelColorColumnDataGridViewTextBoxColumn.Index].Visible = false;
+
             ClipboardProvider.Clipboard.SetDataObject(messagesDataGridView.GetClipboardContent());
+
+            messagesDataGridView.Columns[levelColorColumnDataGridViewTextBoxColumn.Index].Visible = true;
+            currencyManager.ResumeBinding();
+
             copying = false;
         }
 
Index: Core/Gui/test/Core.Gui.Test/Forms/Log/MessageWindowTest.cs
===================================================================
diff -u -r0619b0f5ad27c9042518823db3e2da8def7a6df5 -rfae4167c32bb9e1a19ce3908bb84e868979af7f2
--- Core/Gui/test/Core.Gui.Test/Forms/Log/MessageWindowTest.cs	(.../MessageWindowTest.cs)	(revision 0619b0f5ad27c9042518823db3e2da8def7a6df5)
+++ Core/Gui/test/Core.Gui.Test/Forms/Log/MessageWindowTest.cs	(.../MessageWindowTest.cs)	(revision fae4167c32bb9e1a19ce3908bb84e868979af7f2)
@@ -441,7 +441,7 @@
                 IDataObject actualDataObject = ClipboardProvider.Clipboard.GetDataObject();
                 Assert.IsTrue(actualDataObject != null && actualDataObject.GetDataPresent(DataFormats.Text));
                 var actualContent = (string) actualDataObject.GetData(DataFormats.Text);
-                Assert.AreEqual("WARN\t\tmessage\t00:00:00", actualContent);
+                Assert.AreEqual("WARN\tmessage\t00:00:00", actualContent);
             }
         }