MahApps.Metro: Cannot fully programatically maximize window.

Hi,

Having this live of code called: this.WindowState = System.Windows.WindowState.Maximized;

does change the size of the window, however there are borders all around the window, where the window isn’t touching the edge of the screen or the taskbar. Here is my opening window tag:

    <Controls:MetroWindow x:Name="GameWindow" x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
                      ShowMinButton="False"
                      ShowMaxRestoreButton="False"
                      ResizeMode="NoResize"
                      SaveWindowPosition="True"
        Title="MainWindow" Height="350" Width="525" GlowBrush="#FF07908E" Background="#FF252525"
                      WindowState="Maximized"
                      IgnoreTaskbarOnMaximize="True">

Effectively, I want to come out of fullscreen as it is set to when it launches, and have it take up all the screen but not cover the taskbar… Which it does apart from it leaves this strange gap around…