diff --git a/PROMS/Volian.Controls.Library/StepTabRibbon.cs b/PROMS/Volian.Controls.Library/StepTabRibbon.cs
index baaa4ea0..e7dbdc39 100644
--- a/PROMS/Volian.Controls.Library/StepTabRibbon.cs
+++ b/PROMS/Volian.Controls.Library/StepTabRibbon.cs
@@ -952,6 +952,7 @@ namespace Volian.Controls.Library
 			// if already in edit mode, we don't want to do the StartEditing code below, because it
 			// will override the current cursor positioning and selection range.
 			Control ctrl = FindActiveControl();
+			if (ctrl == null) return;  // null if on property page for procedure & section number/title
 			if (ctrl is VlnFlexGrid) 
 			{
 				// Selected table cell is not in edit mode. Go into edit mode and position acording
@@ -1004,7 +1005,8 @@ namespace Volian.Controls.Library
 			StartGridEditing(SelectionOption.End);
 			IDataObject myDO = Clipboard.GetDataObject();
 			RichTextBox myRtb = _MyStepRTB;
-			Control ctrl = FindActiveControl();
+			Control ctrl = FindActiveControl(); // null if on property page for procedure & section number/title
+			if (ctrl == null) return;
 			//Console.WriteLine("Paste myRTB == ctrl {0}", myRtb.Equals(ctrl));
 			if (!_MyStepRTB.Focused)
 			{
@@ -1064,7 +1066,12 @@ namespace Volian.Controls.Library
 			bool beenThereDoneThat = false; // flag to prevent infinate loop
 			Control tmp = this;
 			while (!(tmp.Parent is Form))
+			{
 				tmp = tmp.Parent;
+				// if coming from property page (properties of procedure & section number/title), 
+				// tmp becomes null rather than from flexgrid or steptext.
+				if (tmp == null) return null;   
+			}
 			Form frm = tmp.Parent as Form;
 			tmp = frm.ActiveControl;
 			while (!beenThereDoneThat && tmp.Controls.Count > 0)
@@ -1088,6 +1095,7 @@ namespace Volian.Controls.Library
 		private void MoveSelectedToClipboard(bool isCut)
 		{
 			Control ctrl = FindActiveControl();
+			if (ctrl == null) return; // null if on property page for procedure & section number/title
 			Clipboard.Clear();
 			DataObject myDO = new DataObject(); ;
 			if (ctrl is RichTextBox)