diff --git a/PROMS/Volian.Controls.Library/DisplayTabControl.cs b/PROMS/Volian.Controls.Library/DisplayTabControl.cs
index bb08ae51..470f32b0 100644
--- a/PROMS/Volian.Controls.Library/DisplayTabControl.cs
+++ b/PROMS/Volian.Controls.Library/DisplayTabControl.cs
@@ -411,7 +411,14 @@ namespace Volian.Controls.Library
 			EntryInfo myEntry = myItemInfo.MyContent.MyEntry;
 			string key = "Doc - " + myEntry.DocID;
 			if (_MyDisplayTabItems.ContainsKey(key)) // If document page  open use it
+			{
 				pg = _MyDisplayTabItems[key];
+				if (pg.MyItemInfo.ItemID != myItemInfo.ItemID)
+				{
+					string msg = string.Format("{0} is already open", myItemInfo.MyContent.MyEntry.MyDocument.LibTitle);
+					MessageBox.Show(msg, "Library Document is Already Open", MessageBoxButtons.OK);
+				}
+			}
 			else
 			{
 				if (DSOTabPanel.Count > 18) // Limit the number of open document pages to 18
@@ -419,8 +426,10 @@ namespace Volian.Controls.Library
 					MessageBox.Show("Too many Word Documents Open.  Please close one of the Documents before attempting to open another");
 					return null;
 				}
+				if ((myItemInfo.MyContent.MyEntry.MyDocument.LibTitle ?? "") != "")
+					MessageBox.Show("WARNING: All edits made to this Library Document will be applied to all uses of the Document");
 				pg = new DisplayTabItem(this.components, this, myItemInfo, key); // Open a new document page
-				_MyDisplayTabItems.Add(key, pg);
+					_MyDisplayTabItems.Add(key, pg);
 			}
 			SelectedDisplayTabItem = pg;
 			pg.MyDSOTabPanel.EnterPanel();