diff --git a/PROMS/Volian.Controls.Library/DisplayHistory.cs b/PROMS/Volian.Controls.Library/DisplayHistory.cs
index 8e9d504c..6ef9ba23 100644
--- a/PROMS/Volian.Controls.Library/DisplayHistory.cs
+++ b/PROMS/Volian.Controls.Library/DisplayHistory.cs
@@ -232,7 +232,8 @@ namespace Volian.Controls.Library
 			//myRTB.LastRtf = string.Empty;
 			myVFG.Clear();
 			myPicBox.Image = null;
-			tvAudits.Nodes.Clear();
+      if (!tvAudits.IsDisposed) // fixes a crash that happend while debugging separate windows, have not been able to reproduce. left this IF check in just in case. - jsj 2-1-2018
+			  tvAudits.Nodes.Clear();
 			if (MyItemInfo == null)
 			{
 				this.Cursor = Cursors.Default;
@@ -643,7 +644,7 @@ namespace Volian.Controls.Library
 						// get id for step that is linked & see if it exists - if not, clear the enhanced config data
 						StepConfig sc = MyItemInfo.MyConfig as StepConfig;
 						ItemInfo iexists = ItemInfo.Get(sc.MyEnhancedDocuments[0].ItemID);
-						if (iexists == null) ItemInfo.RemoveEnhancedFromConfig(MyItemInfo, true);
+						if (iexists == null) MyItemInfo.RemoveEnhancedFromConfig(true);
 					}
 					myRTB.Clear();
 					myVFG.Clear();