diff --git a/ViewModels/MainWindowViewModel.cs b/ViewModels/MainWindowViewModel.cs
index aa96225..d31cabf 100644
--- a/ViewModels/MainWindowViewModel.cs
+++ b/ViewModels/MainWindowViewModel.cs
@@ -43,16 +43,7 @@ namespace TradeBlotter.ViewModels
     public MainWindowViewModel()
     {
       anchorables=new ObservableCollection<WorkspaceViewModel>();
-      String principal = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
-      StringBuilder sb = new StringBuilder();
-      sb.Append("eNavigator").Append(" ").Append("(").Append(principal).Append(")");
-      sb.Append("[").Append(Utility.Is64Bit()?"64Bit":"32Bit").Append("]");
-
-
-
-
-
-      base.DisplayName = sb.ToString();
+      base.DisplayName = GetTitle();
       Dispatcher.CurrentDispatcher.BeginInvoke((Action)(() => { DisplaySplashScreen(); }), DispatcherPriority.Normal);
       DispatcherOperation viewStateOperation=Dispatcher.CurrentDispatcher.BeginInvoke((Action)(() => { LoadViewStateThreadProc(); }), DispatcherPriority.Normal);
       viewStateOperation.Completed += (s, e) => 
@@ -63,6 +54,17 @@ namespace TradeBlotter.ViewModels
       Dispatcher.CurrentDispatcher.BeginInvoke((Action)(() => { HeadlinesThreadProc(); }), DispatcherPriority.Normal);
     }
 
+    private static String GetTitle()
+    {
+      DataSourceEx dataSource = MainDataSource.Instance.LocateDataSource("market_data");
+      String principal = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
+      StringBuilder sb = new StringBuilder();
+      sb.Append("eNavigator").Append(" ").Append("(").Append(principal).Append(")");
+      sb.Append("[").Append(Utility.Is64Bit()?"64Bit":"32Bit").Append("]").Append(" ");
+      sb.Append("[").Append("DataSource->").Append(dataSource.Datasource).Append("]");
+      return sb.ToString();
+    }
+
     private void DisplaySplashScreen()
     {
       if(System.Diagnostics.Debugger.IsAttached)return;