diff --git a/ViewModels/CMMomentumViewModel.cs b/ViewModels/CMMomentumViewModel.cs
index 6143d5c..bfd3c1d 100644
--- a/ViewModels/CMMomentumViewModel.cs
+++ b/ViewModels/CMMomentumViewModel.cs
@@ -28,6 +28,7 @@ using Position = MarketData.Generator.CMMomentum.Position;
 using TradeBlotter.UIUtils;
 using MarketData.Generator.Model;
 using MarketData.CNNProcessing;
+using System.Runtime.InteropServices.WindowsRuntime;
 
 namespace TradeBlotter.ViewModels
 {
@@ -1120,39 +1121,60 @@ namespace TradeBlotter.ViewModels
         return;
       }
     }
+
     public bool LoadSessionFile()
     {
-      if (!CMSessionManager.IsValidSessionFile(pathFileName)) return false;
-      initialPath = Path.GetDirectoryName(pathFileName);
-      sessionParams=CMSessionManager.RestoreSession(pathFileName);
-      if (null == sessionParams) { MessageBox.Show(String.Format("Unable to open {0}", pathFileName)); pathFileName = null; return false; }
-      modelStatistics=CMMomentumBacktest.GetModelStatistics(sessionParams);
-      modelPerformanceSeries=CMMomentumBacktest.GetModelPerformance(sessionParams);
-      cmParams = sessionParams.CMParams;
-      NVPCollection nvpCollection = sessionParams.CMParams.ToNVPCollection();
-      nvpDictionary = nvpCollection.ToDictionary();
-      nvpDictionaryKeys = new ObservableCollection<String>(nvpDictionary.Keys);
-      selectedParameter = nvpDictionaryKeys[0];
-      positions = new CMPositionModelCollection();
-      positions.Add(sessionParams.ActivePositions);
-      positions.Add(sessionParams.AllPositions);
-      UpdatePositionPrices(false);
-      UpdatePositionRSI3(true);
-      RunPerformance();
-      base.OnPropertyChanged("Parameters");
-      base.OnPropertyChanged("SelectedParameter");
-      base.OnPropertyChanged("ParameterValue");
-      base.OnPropertyChanged("Title");
-      base.OnPropertyChanged("DisplayName");
-      base.OnPropertyChanged("AllPositions");
-      base.OnPropertyChanged("CanMonitor");
-      base.OnPropertyChanged("CashBalance");
-      base.OnPropertyChanged("NonTradeableCash");
-      base.OnPropertyChanged("ModelExpectation");
-      base.OnPropertyChanged("ExpectationColor");
-      base.OnPropertyChanged("ExpectationDescription");
+      BusyIndicator = true;
+      BusyContent = $"Loading {Utility.GetFileNameNoExtension(pathFileName)}...";      
+
+      Task workerTask = Task.Factory.StartNew(() =>
+      {
+        try
+        {
+          if (!CMSessionManager.IsValidSessionFile(pathFileName)) return false;
+          initialPath = Path.GetDirectoryName(pathFileName);
+          sessionParams=CMSessionManager.RestoreSession(pathFileName);
+          if (null == sessionParams) { MessageBox.Show(String.Format("Unable to open {0}", pathFileName)); pathFileName = null; return false; }
+          modelStatistics=CMMomentumBacktest.GetModelStatistics(sessionParams);
+          modelPerformanceSeries=CMMomentumBacktest.GetModelPerformance(sessionParams);
+          cmParams = sessionParams.CMParams;
+          NVPCollection nvpCollection = sessionParams.CMParams.ToNVPCollection();
+          nvpDictionary = nvpCollection.ToDictionary();
+          nvpDictionaryKeys = new ObservableCollection<String>(nvpDictionary.Keys);
+          selectedParameter = nvpDictionaryKeys[0];
+          positions = new CMPositionModelCollection();
+          positions.Add(sessionParams.ActivePositions);
+          positions.Add(sessionParams.AllPositions);
+          UpdatePositionPrices(false);
+          UpdatePositionRSI3(true);
+          RunPerformance();
+          return true;
+        }
+        catch(Exception exception)
+        {
+          System.Windows.MessageBox.Show(String.Format("Exception {0}",exception.ToString()),"Error",MessageBoxButton.OK,MessageBoxImage.Exclamation);
+          return false;
+        }
+      });
+      workerTask.ContinueWith(continuation =>
+      {
+        BusyIndicator=false;
+        base.OnPropertyChanged("Parameters");
+        base.OnPropertyChanged("SelectedParameter");
+        base.OnPropertyChanged("ParameterValue");
+        base.OnPropertyChanged("Title");
+        base.OnPropertyChanged("DisplayName");
+        base.OnPropertyChanged("AllPositions");
+        base.OnPropertyChanged("CanMonitor");
+        base.OnPropertyChanged("CashBalance");
+        base.OnPropertyChanged("NonTradeableCash");
+        base.OnPropertyChanged("ModelExpectation");
+        base.OnPropertyChanged("ExpectationColor");
+        base.OnPropertyChanged("ExpectationDescription");
+      });
       return true;
     }
+
     private void RunPerformance()
     {
       if(null==sessionParams)return;
diff --git a/ViewModels/CMTTrendViewModel.cs b/ViewModels/CMTTrendViewModel.cs
index 432c918..0aead12 100644
--- a/ViewModels/CMTTrendViewModel.cs
+++ b/ViewModels/CMTTrendViewModel.cs
@@ -1236,42 +1236,63 @@ namespace TradeBlotter.ViewModels
         return;
       }
     }
+
     public bool LoadSessionFile()
     {
-      if(!CMTSessionManager.IsValidSessionFile(pathFileName)) return false;
-      initialPath=Path.GetDirectoryName(pathFileName);
-      sessionParams=CMTSessionManager.RestoreSession(pathFileName);
-      if(null==sessionParams) { MessageBox.Show(String.Format("Unable to open {0}",pathFileName)); pathFileName=null; return false; }
-      modelStatistics=CMTTrendModel.GetModelStatistics(sessionParams);
-      configuration=sessionParams.CMTParams;
-      NVPCollection nvpCollection=sessionParams.CMTParams.ToNVPCollection();
-      nvpDictionary=nvpCollection.ToDictionary();
-      nvpDictionaryKeys=new ObservableCollection<String>(nvpDictionary.Keys);
-      selectedParameter=nvpDictionaryKeys[0];
-      positions=new CMTPositionModelCollection();
-      positions.Add(sessionParams.ActivePositions);
-      positions.Add(sessionParams.AllPositions);
-      trendCandidates=new ObservableCollection<CMTCandidate>();
-      foreach(CMTCandidate candidate in sessionParams.Candidates)trendCandidates.Add(candidate);
-      UpdatePositionPrices(true);
-      RunPerformance();
-      base.OnPropertyChanged("Parameters");
-      base.OnPropertyChanged("SelectedParameter");
-      base.OnPropertyChanged("ParameterValue");
-      base.OnPropertyChanged("Title");
-      base.OnPropertyChanged("DisplayName");
-      base.OnPropertyChanged("AllPositions");
-      base.OnPropertyChanged("CanMonitor");
-      base.OnPropertyChanged("AllItems");
-      base.OnPropertyChanged("CashBalance");
-      base.OnPropertyChanged("NonTradeableCash");
-      base.OnPropertyChanged("ModelExpectation");
-      base.OnPropertyChanged("ExpectationColor");
-      base.OnPropertyChanged("ExpectationDescription");
-      base.OnPropertyChanged("TradeableCashDescription");
-      base.OnPropertyChanged("NonTradeableCashDescription");
+      BusyIndicator = true;
+      BusyContent = $"Loading {Utility.GetFileNameNoExtension(pathFileName)}...";
+
+      Task workerTask = Task.Factory.StartNew( () =>
+      {
+        try
+        {
+          if(!CMTSessionManager.IsValidSessionFile(pathFileName)) return false;
+          initialPath=Path.GetDirectoryName(pathFileName);
+          sessionParams=CMTSessionManager.RestoreSession(pathFileName);
+          if(null==sessionParams) { MessageBox.Show(String.Format("Unable to open {0}",pathFileName)); pathFileName=null; return false; }
+          modelStatistics=CMTTrendModel.GetModelStatistics(sessionParams);
+          configuration=sessionParams.CMTParams;
+          NVPCollection nvpCollection=sessionParams.CMTParams.ToNVPCollection();
+          nvpDictionary=nvpCollection.ToDictionary();
+          nvpDictionaryKeys=new ObservableCollection<String>(nvpDictionary.Keys);
+          selectedParameter=nvpDictionaryKeys[0];
+          positions=new CMTPositionModelCollection();
+          positions.Add(sessionParams.ActivePositions);
+          positions.Add(sessionParams.AllPositions);
+          trendCandidates=new ObservableCollection<CMTCandidate>();
+          foreach(CMTCandidate candidate in sessionParams.Candidates)trendCandidates.Add(candidate);
+          UpdatePositionPrices(true);
+          RunPerformance();
+          return true;
+        }
+        catch(Exception exception)
+        {
+          System.Windows.MessageBox.Show(String.Format("Exception {0}",exception.ToString()),"Error",MessageBoxButton.OK,MessageBoxImage.Exclamation);
+          return false;
+        }
+      });
+      workerTask.ContinueWith(continuation =>
+      {
+        BusyIndicator = false;
+        base.OnPropertyChanged("Parameters");
+        base.OnPropertyChanged("SelectedParameter");
+        base.OnPropertyChanged("ParameterValue");
+        base.OnPropertyChanged("Title");
+        base.OnPropertyChanged("DisplayName");
+        base.OnPropertyChanged("AllPositions");
+        base.OnPropertyChanged("CanMonitor");
+        base.OnPropertyChanged("AllItems");
+        base.OnPropertyChanged("CashBalance");
+        base.OnPropertyChanged("NonTradeableCash");
+        base.OnPropertyChanged("ModelExpectation");
+        base.OnPropertyChanged("ExpectationColor");
+        base.OnPropertyChanged("ExpectationDescription");
+        base.OnPropertyChanged("TradeableCashDescription");
+        base.OnPropertyChanged("NonTradeableCashDescription");
+      });
       return true;
     }
+
     private void RunPerformance()
     {
       if(null==sessionParams)return;
diff --git a/ViewModels/MomentumViewModel.cs b/ViewModels/MomentumViewModel.cs
index e7220ef..c7b6aac 100644
--- a/ViewModels/MomentumViewModel.cs
+++ b/ViewModels/MomentumViewModel.cs
@@ -1103,37 +1103,54 @@ namespace TradeBlotter.ViewModels
       }
       else LoadSessionFile();
     }
+
     public bool LoadSessionFile()
     {
-      try
+      BusyIndicator = true;
+      BusyContent = $"Loading {Utility.GetFileNameNoExtension(pathFileName)}...";
+
+      Task workerTask = Task.Factory.StartNew(() =>
       {
-        if(!MGSessionManager.IsValidSessionFile(pathFileName))
+        try
         {
-          MessageBox.Show(String.Format("'{0}' is not a valid model. IsValidSessionFile returned false.",pathFileName));
-          pathFileName = null;
+          if(!MGSessionManager.IsValidSessionFile(pathFileName))
+          {
+            MessageBox.Show(String.Format("'{0}' is not a valid model. IsValidSessionFile returned false.",pathFileName));
+            pathFileName = null;
+            return false;
+          }
+          initialPath=Path.GetDirectoryName(pathFileName);
+          sessionParams=MGSessionManager.RestoreSession(pathFileName);
+          if(null==sessionParams)
+          { 
+            MessageBox.Show(String.Format("Unable to open '{0}'.  Restore session failed.",pathFileName));
+            pathFileName=null;
+            return false;
+          }
+          modelStatistics=MomentumBacktest.GetModelStatistics(sessionParams);
+          modelPerformanceSeries=MomentumBacktest.GetModelPerformance(sessionParams);
+          configuration=sessionParams.Configuration;
+          NVPCollection nvpCollection=sessionParams.Configuration.ToNVPCollection();
+          nvpDictionary=nvpCollection.ToDictionary();
+          nvpDictionaryKeys=new ObservableCollection<String>(nvpDictionary.Keys);
+          selectedParameter=nvpDictionaryKeys[0];
+          positions=new MGPositionModelCollection();
+          positions.Add(sessionParams.ActivePositions);
+          positions.Add(sessionParams.AllPositions);
+          UpdatePositionPrices(false);
+          UpdatePositionRSI3(true);
+          RunPerformance();
+          return true;
+        }
+        catch(Exception exception)
+        {
+          System.Windows.MessageBox.Show(String.Format("Exception {0}",exception.ToString()),"Error",MessageBoxButton.OK,MessageBoxImage.Exclamation);
           return false;
         }
-        initialPath=Path.GetDirectoryName(pathFileName);
-        sessionParams=MGSessionManager.RestoreSession(pathFileName);
-        if(null==sessionParams)
-        { 
-          MessageBox.Show(String.Format("Unable to open '{0}'.  Restore session failed.",pathFileName));
-          pathFileName=null;
-          return false;
-        }
-        modelStatistics=MomentumBacktest.GetModelStatistics(sessionParams);
-        modelPerformanceSeries=MomentumBacktest.GetModelPerformance(sessionParams);
-        configuration=sessionParams.Configuration;
-        NVPCollection nvpCollection=sessionParams.Configuration.ToNVPCollection();
-        nvpDictionary=nvpCollection.ToDictionary();
-        nvpDictionaryKeys=new ObservableCollection<String>(nvpDictionary.Keys);
-        selectedParameter=nvpDictionaryKeys[0];
-        positions=new MGPositionModelCollection();
-        positions.Add(sessionParams.ActivePositions);
-        positions.Add(sessionParams.AllPositions);
-        UpdatePositionPrices(false);
-        UpdatePositionRSI3(true);
-        RunPerformance();
+      });
+      workerTask.ContinueWith(continuation =>
+      {
+        BusyIndicator=false;
         base.OnPropertyChanged("Parameters");
         base.OnPropertyChanged("SelectedParameter");
         base.OnPropertyChanged("ParameterValue");
@@ -1146,14 +1163,10 @@ namespace TradeBlotter.ViewModels
         base.OnPropertyChanged("ModelExpectation");
         base.OnPropertyChanged("ExpectationColor");
         base.OnPropertyChanged("ExpectationDescription");
-        return true;
-      }
-      catch(Exception exception)
-      {
-        System.Windows.MessageBox.Show(String.Format("Exception {0}",exception.ToString()),"Error",MessageBoxButton.OK,MessageBoxImage.Exclamation);
-        return false;
-      }
+      });
+      return true;
     }
+
     private void RunPerformance()
     {
       if(null==sessionParams)return;