diff --git a/PROMS/Volian.Controls.Library/DisplayTransition.cs b/PROMS/Volian.Controls.Library/DisplayTransition.cs
index 2fd26df1..f282b01c 100644
--- a/PROMS/Volian.Controls.Library/DisplayTransition.cs
+++ b/PROMS/Volian.Controls.Library/DisplayTransition.cs
@@ -725,7 +725,7 @@ namespace Volian.Controls.Library
 				else
 				{
 					_InitializingTrans = true;			// just initializing now, don't set any ranges, etc.
-					tvTranFillIn(secitm.Steps[0]);
+					tvTranFillIn((secitm.Steps==null||secitm.Steps.Count==0)?null:secitm.Steps[0]);
 					tvTran.Enabled = true;
 					_InitializingTrans = false;
 				}
@@ -773,7 +773,7 @@ namespace Volian.Controls.Library
 			else
 			{
 				_InitializingTrans = true;			// just initializing now, don't set any ranges, etc.
-				tvTranFillIn(secitm.Steps[0]);
+				tvTranFillIn((secitm.Steps == null || secitm.Steps.Count == 0) ? null : secitm.Steps[0]);
 				tvTran.Enabled = true;
 				// if doing a 'new' range, no node is selected in tree.  Without this, the first node in the
 				// tree was the selected node which was throwing off the logic for defining the _RangeNode1