diff --git a/ZKuP/Helper.cs b/ZKuP/Helper.cs
index aed1517..c861247 100644
--- a/ZKuP/Helper.cs
+++ b/ZKuP/Helper.cs
@@ -1,4 +1,5 @@
-using Microsoft.Win32;
+using MahApps.Metro.Controls;
+using Microsoft.Win32;
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -36,6 +37,7 @@ namespace ZKuP
     {
         public static double width = 0;
         public static double height = 0;
+        public static double scale = 0;
         public static bool? IsFileLocked(FileInfo file)
         {
             try
@@ -809,54 +811,67 @@ namespace ZKuP
             return GetCell(grid, rowContainer, column);
         }
 
+
+        internal static void initScaler(double Width, double Height)
+        {
+            width = Width;
+            height = Height;
+        }
+
         static double lastDpiScale = -1;
         static bool _isCurrentlyScaled = false;
         internal static async void CheckScale(Window mainWindow)
         {
-            var dpi = VisualTreeHelper.GetDpi(mainWindow);
-            double dpiScale = dpi.DpiScaleX; // or DpiScaleY
-
-
-            double scaledWidth = width * dpiScale;
-            double scaledHeight = height * dpiScale;
-
-            var screen = WpfScreenHelper.Screen.FromHandle(new WindowInteropHelper(mainWindow).Handle);
-            var workingArea = screen.WorkingArea;
-
-            bool needsScaling = (width * dpiScale) > workingArea.Width || (height * dpiScale) > workingArea.Height;
-
-            lastDpiScale = dpiScale;
-
-            if (needsScaling)
+            if (!(width == 0 || height == 0))
             {
-                // Calculate the scale to fit in working area
-                double scaleX = workingArea.Width / width;
-                double scaleY = workingArea.Height / height;
-                double scale = Math.Min(scaleX, scaleY);
+                var dpi = VisualTreeHelper.GetDpi(mainWindow);
+                double dpiScale = dpi.DpiScaleX; // or DpiScaleY
 
-                scale = Math.Round(scale * 4) / 4.0;
 
-                mainWindow.MinWidth = scale * width;
-                mainWindow.MinHeight = scale * height;
-                mainWindow.LayoutTransform = new ScaleTransform(scale, scale);
+                double scaledWidth = width * dpiScale;
+                double scaledHeight = height * dpiScale;
 
-                mainWindow.Width = mainWindow.MinWidth;
-                mainWindow.Height = mainWindow.MinHeight;
+                var screen = WpfScreenHelper.Screen.FromHandle(new WindowInteropHelper(mainWindow).Handle);
+                var workingArea = screen.WorkingArea;
 
-                TextOptions.SetTextFormattingMode(mainWindow, TextFormattingMode.Display);
-                TextOptions.SetTextRenderingMode(mainWindow, TextRenderingMode.ClearType);
-                _isCurrentlyScaled = true;
-            }
-            else if (_isCurrentlyScaled)
-            {
-                // Reset to normal scale
-                mainWindow.LayoutTransform = Transform.Identity;
+                bool needsScaling = (width * dpiScale) > workingArea.Width || (height * dpiScale) > workingArea.Height;
 
-                mainWindow.MinWidth = width != 0 ? width : mainWindow.MinWidth;
-                mainWindow.MinHeight = height != 0 ? height : mainWindow.MinHeight;
+                lastDpiScale = dpiScale;
 
-                TextOptions.SetTextFormattingMode(mainWindow, TextFormattingMode.Ideal);
-                TextOptions.SetTextRenderingMode(mainWindow, TextRenderingMode.Auto);
+                if (needsScaling && !_isCurrentlyScaled)
+                {
+                    // Calculate the scale to fit in working area
+                    double scaleX = width / workingArea.Width;
+                    double scaleY = height / workingArea.Height;
+                    scale = Math.Min(scaleX, scaleY);
+
+                    scale = Math.Round(scale * 4) / 4.0;
+
+                    mainWindow.MinWidth = scale * width;
+                    mainWindow.MinHeight = scale * height;
+                    mainWindow.LayoutTransform = new ScaleTransform(scale, scale);
+                    
+
+                    mainWindow.Width = mainWindow.MinWidth;
+                    mainWindow.Height = mainWindow.MinHeight;
+
+                    TextOptions.SetTextFormattingMode(mainWindow, TextFormattingMode.Display);
+                    TextOptions.SetTextRenderingMode(mainWindow, TextRenderingMode.ClearType);
+                    _isCurrentlyScaled = true;
+                }
+                else if (_isCurrentlyScaled && !needsScaling)
+                {
+                    // Reset to normal scale
+                    mainWindow.LayoutTransform = Transform.Identity;
+
+                    mainWindow.MinWidth = width != 0 ? width : mainWindow.MinWidth;
+                    mainWindow.MinHeight = height != 0 ? height : mainWindow.MinHeight;
+
+                    TextOptions.SetTextFormattingMode(mainWindow, TextFormattingMode.Ideal);
+                    TextOptions.SetTextRenderingMode(mainWindow, TextRenderingMode.Auto);
+
+                    _isCurrentlyScaled = false;
+                }
             }
         }
 
diff --git a/ZKuP/MainWindow.xaml b/ZKuP/MainWindow.xaml
index 0ff015f..deee3b0 100644
--- a/ZKuP/MainWindow.xaml
+++ b/ZKuP/MainWindow.xaml
@@ -607,7 +607,7 @@
         </Grid>
 
 
-        <Grid x:Name="gridToday" Grid.Row="1" Visibility="Collapsed" VerticalAlignment="Stretch" MinHeight="100" Margin="0,-10,0,0" MaxWidth="{Binding ActualWidth, ElementName=metroWindow, Mode=OneWay}">
+        <Grid x:Name="gridToday" Grid.Row="1" Visibility="Collapsed" VerticalAlignment="Stretch" MinHeight="100" Margin="0,-10,0,0" >
             <Grid.ColumnDefinitions>
                 <ColumnDefinition x:Name="columnLeft" Width="1.456*" MinWidth="1000"/>
                 <ColumnDefinition Width="15"/>
diff --git a/ZKuP/MainWindow.xaml.cs b/ZKuP/MainWindow.xaml.cs
index c77311a..e0b71bb 100644
--- a/ZKuP/MainWindow.xaml.cs
+++ b/ZKuP/MainWindow.xaml.cs
@@ -43,7 +43,7 @@ namespace ZKuP
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }
 
-        public const string Version = "5.1.0.4";
+        public const string Version = "5.1.0.5";
         public static Roles LoggedInRole { get; private set; } = Roles.None;
 
 
@@ -291,8 +291,7 @@ namespace ZKuP
             if (actualheight <= 191) gridBackground.RowDefinitions[1].Height = new GridLength(maxheight);
 
             //gridSpinner.Visibility = Visibility.Collapsed;
-            Helper.width = this.MinWidth;
-            Helper.height = this.MinHeight;
+            Helper.initScaler(this.MinWidth, this.MinHeight);
 
 
             connTimer.Interval = TimeSpan.FromSeconds(2);
@@ -3038,10 +3037,10 @@ namespace ZKuP
 
             Point splitterPosition = splitter.TransformToAncestor(window).Transform(new Point(0, 0));
 
-            if (splitterPosition.Y > (this.ActualHeight - 190))
+            if (splitterPosition.Y > ((this.ActualHeight - 190) / Helper.scale))
             {
                 e.Handled = true; // Bewegung stoppen
-                gridRowTop.Height = new GridLength(this.ActualHeight - 160 - 190);
+                gridRowTop.Height = new GridLength((this.ActualHeight - 160 - 190) / Helper.scale);
             }
         }