diff --git a/PROMS/Volian.Controls.Library/GridItem.cs b/PROMS/Volian.Controls.Library/GridItem.cs
index 71cb3cc9..6a5a3950 100644
--- a/PROMS/Volian.Controls.Library/GridItem.cs
+++ b/PROMS/Volian.Controls.Library/GridItem.cs
@@ -168,6 +168,7 @@ namespace Volian.Controls.Library
 		}	
 		void MyStepRTB_VisibleChanged(object sender, EventArgs e)
 		{
+			if (MyStepRTB == null) return;
 			MyStepRTB.EditMode = MyStepRTB.Visible;
 			//Console.WriteLine("MyStepRTB_VisibleChanged {0}", MyStepRTB.Width);
 			//Console.WriteLine("GridItem: EditMode = {0}", MyStepRTB.EditMode);