diff --git a/MarketDataLib/Generator/CMMomentum/CMBacktest.cs b/MarketDataLib/Generator/CMMomentum/CMBacktest.cs
index 8429e67..c91e8ee 100644
--- a/MarketDataLib/Generator/CMMomentum/CMBacktest.cs
+++ b/MarketDataLib/Generator/CMMomentum/CMBacktest.cs
@@ -29,7 +29,6 @@ namespace MarketData.Generator.CMMomentum
     private int MaxPositions { get { return Parameters.MaxPositions; } }
     private List<String> NoTradeSymbols { get { return Utility.ToList(Parameters.NoTradeSymbols); } }
     private ActivePositions ActivePositions { get; set; }
-    private SMSNotifications SMSNotifications { get; set; }
     private Positions AllPositions { get; set; }
     private int Cycle { get; set; }
     private DateTime TradeDate { get; set; }
@@ -377,7 +376,15 @@ namespace MarketData.Generator.CMMomentum
         MDTrace.WriteLine(LogLevel.DEBUG, String.Format("Using session file {0}, Last updated {1}", paramPathSessionFileName, sessionParams.LastUpdated));
       }
       Parameters.DisplayConfiguration();
-      CheckCNNServerStatus();
+      if(!IsCNNServerAvailable())
+      {
+        GBPriceCache.GetInstance().Dispose();
+        return new CMBacktestResult()
+        {
+          Success = false,
+          CashBalance = CashBalance
+        };
+      }
       DisplayBalance();
       if(TradeDate > AnalysisDate)
       {
@@ -712,18 +719,18 @@ namespace MarketData.Generator.CMMomentum
 // ****************************************************************************************************************************************
 // ************************************************************** C N N  S E R V E R   ***************************************************
 // ****************************************************************************************************************************************
-    private void CheckCNNServerStatus()
+    private bool IsCNNServerAvailable()
     {
-      if(Parameters.UseCNN)  // ping the server here so that we don't have to do it for each request
+      if(!Parameters.UseCNN)return true;
+
+      CNNClient cnnClient=new CNNClient(Parameters.UseCNNHost);
+      if(!cnnClient.Ping())
       {
-        CNNClient cnnClient=new CNNClient(Parameters.UseCNNHost);
-        if(!cnnClient.Ping())
-        {
-          String strMessage=String.Format("******* UseCNN=true but the server is not responding. {0} *******",Parameters.UseCNNHost);
-          Console.Beep(800,200);
-          throw new Exception(strMessage);
-        }
+        String strMessage=String.Format("******* UseCNN=true but the server is not responding. {0} *******",Parameters.UseCNNHost);
+        MDTrace.WriteLine(LogLevel.DEBUG,strMessage);
+        return false;
       }
+      return true;
     }
 // ****************************************************************************************************************************************
 // **************************************************************** S E S S I O N  M A N A G E M E N T  ***********************************