diff --git a/VECTO/GUI/MainForm.Designer.vb b/VECTO/GUI/MainForm.Designer.vb
index bec8e8889e4f63a59841eb8ccd4d39765191fb9c..53e8d3fd348d7003c1c13700131f0a86fa83d20a 100644
--- a/VECTO/GUI/MainForm.Designer.vb
+++ b/VECTO/GUI/MainForm.Designer.vb
@@ -407,8 +407,6 @@ Partial Class MainForm
         'cbValidateXMLDeclarationJobs
         '
         Me.cbValidateXMLDeclarationJobs.AutoSize = true
-        Me.cbValidateXMLDeclarationJobs.Checked = true
-        Me.cbValidateXMLDeclarationJobs.CheckState = System.Windows.Forms.CheckState.Checked
         Me.cbValidateXMLDeclarationJobs.Location = New System.Drawing.Point(6, 19)
         Me.cbValidateXMLDeclarationJobs.Name = "cbValidateXMLDeclarationJobs"
         Me.cbValidateXMLDeclarationJobs.Size = New System.Drawing.Size(222, 17)
diff --git a/VECTO/GUI/MainForm.resx b/VECTO/GUI/MainForm.resx
index b00fb45de6f7935415bddf8185a50c0bcac9ba1c..df927555f49bdd76bde69313c6de52fd505ff1ab 100644
--- a/VECTO/GUI/MainForm.resx
+++ b/VECTO/GUI/MainForm.resx
@@ -223,6 +223,9 @@
   <metadata name="CmOpenFile.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>732, 12</value>
   </metadata>
+  <metadata name="ToolTip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>850, 12</value>
+  </metadata>
   <metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>49</value>
   </metadata>
diff --git a/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs b/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
index f9f69f9d012164dafc685ea49c1fbcea326bb9af..1888e9190cd1081402580d8b906e61f4819f5bd8 100644
--- a/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
+++ b/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
@@ -59,7 +59,7 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 		private readonly ExecutionMode _mode;
 
 		public SimulatorFactory(ExecutionMode mode, IInputDataProvider dataProvider, IOutputDataWriter writer,
-			IDeclarationReport declarationReport = null, IVTPReport vtpReport = null, bool validate = true, bool validateHashes = true)
+			IDeclarationReport declarationReport = null, IVTPReport vtpReport = null, bool validate = true, bool validateHashes = false)
 		{
 			Log.Info("########## VectoCore Version {0} ##########", Assembly.GetExecutingAssembly().GetName().Version);
 			JobNumber = Interlocked.Increment(ref _jobNumberCounter);