diff --git a/PROMS/DataLoader/RefObjs.cs b/PROMS/DataLoader/RefObjs.cs
index 7a5da128..b68b3ec3 100644
--- a/PROMS/DataLoader/RefObjs.cs
+++ b/PROMS/DataLoader/RefObjs.cs
@@ -25,6 +25,7 @@ namespace DataLoader
 {
 	public partial class Loader
 	{
+		private List<string> InvalidROs = new List<string>();
 		private string MigrateRos(OleDbConnection cn, string textm, string seqcvt, Content content, DocVersion docver, bool conv_caret,ref int rotype)
 		{
 			StringBuilder rotxt = new StringBuilder();
@@ -72,7 +73,7 @@ namespace DataLoader
 					RoUsage ro = RoUsage.MakeRoUsage(content, ROID, null, DateTime.Now, "Migration", rodb);
 					try
 					{
-						string rov = rofstinfo.ROFSTLookup.GetRoValue(ROID.ToUpper());
+						//string rov = rofstinfo.ROFSTLookup.GetRoValue(ROID.ToUpper());
 						ROFSTLookup.rochild myro = rofstinfo.ROFSTLookup.GetRoChild12(ROID.ToUpper());
 						rotype = Math.Max(rotype, myro.type);
 						//jsj string rov = TextConvert.ConvertText(rofstinfo.ROFSTLookup.GetRoValue(ROID.Substring(0, 12).ToUpper()));
@@ -86,7 +87,10 @@ namespace DataLoader
 						{
 							roval = roval.Substring(0, roval.IndexOf('\n'));
 						}
-
+						// add an annotation stating  "Invalid Unit RO 'ROID'.  Need an Item for this, so just add
+						// it to a list of 'invalid ros' so that calling method can add annotations to the Item.
+						if (roval == "?")
+							InvalidROs.Add(string.Format("Invalid RO '{0}'", ROID.Substring(0, 12)));
 						//if (roval.Contains("\r") || roval.Contains("\n"))
 						//    Console.WriteLine("RO has new Lines");
 						//string results = string.Format(@"\v <START]\v0 {0}\v #Link:ReferencedObject:{1} {2} {3}\v0 \v [END>\v0 ",