diff --git a/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
index 337b65d8..72142fa0 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
@@ -16,6 +16,8 @@ namespace CampusAppWP8.Pages.Exams
     using CampusAppWP8.Utility;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using System.Threading;
+    using System;
 
     /// <summary>class of ExamsPage.</summary>
     /// <remarks>Stubbfel, 02.09.2013.</remarks>
@@ -63,7 +65,9 @@ namespace CampusAppWP8.Pages.Exams
                 this.InitializeFeed();
             }
 
-            this.feed.LoadData(Utilities.GetLoadModus<Model.Exams.ExamListWp8Model>());
+            Thread thread = new Thread(new ThreadStart(this.LoadingFeed));
+            thread.Start();
+            
         }
 
         /// <summary>
@@ -88,6 +92,14 @@ namespace CampusAppWP8.Pages.Exams
 
         #region private
 
+        /// <summary> Loading feed. </summary>
+        /// <remarks> Stubbfel, 14.10.2013. </remarks>
+        private void LoadingFeed()
+        {
+            this.feed.LoadData(Utilities.GetLoadModus<Model.Exams.ExamListWp8Model>());
+        }
+
+
         /// <summary>Method initialize the Feed.</summary>
         /// <remarks>Stubbfel, 02.09.2013.</remarks>
         private void InitializeFeed()
@@ -102,8 +114,17 @@ namespace CampusAppWP8.Pages.Exams
         /// <remarks>Stubbfel, 02.09.2013.</remarks>
         private void FeedIsReady()
         {
-            this.SetupExamList();
-            this.DefHeader.ProgressVisibility = Visibility.Collapsed;
+            if (this.Dispatcher != null)
+            {
+                this.Dispatcher.BeginInvoke(new Action(() => this.SetupExamList()));
+                this.Dispatcher.BeginInvoke(new Action(() => this.DefHeader.ProgressVisibility = Visibility.Collapsed));
+            }
+            else
+            {
+                this.SetupExamList();
+                this.DefHeader.ProgressVisibility = Visibility.Collapsed;
+
+            }
         }
 
         /// <summary>Executes the PDF reader operation.</summary>
@@ -173,7 +194,14 @@ namespace CampusAppWP8.Pages.Exams
         /// <remarks>Stubbfel, 02.09.2013.</remarks>
         private void FeedIsFailWeb()
         {
-            MessageBoxResult result = MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadWeb);
+            if (this.Dispatcher != null)
+            {
+                this.Dispatcher.BeginInvoke(new Action(() => MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadWeb)));
+            }
+            else
+            {
+                MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadWeb);
+            }
             this.feed.ForceReadFile();
         }
 
@@ -181,8 +209,16 @@ namespace CampusAppWP8.Pages.Exams
         /// <remarks>Stubbfel, 02.09.2013.</remarks>
         private void FeedIsFailFile()
         {
-            MessageBoxResult result = MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadFile);
-            this.DefHeader.ProgressVisibility = Visibility.Collapsed;
+            if (this.Dispatcher != null)
+            {
+                this.Dispatcher.BeginInvoke(new Action(() =>  MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadFile)));
+                this.Dispatcher.BeginInvoke(new Action(() => this.DefHeader.ProgressVisibility = Visibility.Collapsed));
+            }
+            else
+            {
+                 MessageBoxes.ShowMainModelErrorMessageBox(AppResources.MsgBox_ErrorMainModelLoadFile);
+                this.DefHeader.ProgressVisibility = Visibility.Collapsed;
+            }
         }
 
         /// <summary>Event handler. Called by Button for click events.</summary>