diff --git a/PROMS/Volian.Controls.Library/DisplayTransition.cs b/PROMS/Volian.Controls.Library/DisplayTransition.cs
index 898533b9..8a221652 100644
--- a/PROMS/Volian.Controls.Library/DisplayTransition.cs
+++ b/PROMS/Volian.Controls.Library/DisplayTransition.cs
@@ -445,7 +445,7 @@ namespace Volian.Controls.Library
 				VETreeNode tvn = new VETreeNode(startitm, false);
 				tvn.Tag = startitm;
 				int active = this.tvTran.Nodes.Add(tvn);
-				if (startitm.ItemID == selitm.ItemID)
+				if (selitm !=null && startitm.ItemID == selitm.ItemID)
 				{
 					tvTran.SelectedNode = tvTran.Nodes[active];
 					setsel = true;