RibbonWindow covers up Close buttons when maximized

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C#

WPF

I have a WPF application that I have implemented the OfficeUI RibbonWindow. The problem that I am having is that when I maximize the window, the Ribbon covers up the Close, Minimize and Maximize buttons. When the form is not maximized, the buttons appear as normal. I cannot figure out how to stop it from doing this. Could it have something to do with my row definition height being set to Auto? I am very new to WPF and XAML, so any help would be appreciated.

<r:ribbonwindow xmlns:r="#unknown">
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:r="clr-namespace:Microsoft.Windows.Controls.Ribbon;assembly=RibbonControlsLibrary"
    x:Class="RecipeOrganizer.MainWindow"
    x:Name="Window"
    Title="Recipes"
    Height="707" Width="740" xmlns:my="clr-namespace:RecipeOrganizer" Loaded="Window_Loaded">
    
    
    <r:ribbonwindow.resources>        
        <resourcedictionary>
            <resourcedictionary.mergeddictionaries>
                <resourcedictionary source="/RibbonControlsLibrary;component/Themes/Office2007Blue.xaml" />
            </resourcedictionary.mergeddictionaries>
                
            <r:ribboncommand x:key="ClipboardGroupCommand" xmlns:x="#unknown">
                CanExecute="OnCanExecute"
                Executed="OnShowClipboardGroup"
                LabelTitle="Clipboard"/>
            <r:ribboncommand x:key="CopyCommand">
                CanExecute="OnCanExecute"
                LabelTitle="Copy"
                LargeImageSource="Images\Copy2.png"
                ToolTipDescription="Copy the selection to the Clipboard."
                ToolTipTitle="Copy (Ctrl+C)"/>
            <r:ribboncommand x:key="PasteCommand">
                CanExecute="OnCanExecute"
                LabelTitle="Paste"
                LargeImageSource="Images\Paste.png"
                ToolTipDescription="Paste the selection from the Clipboard."
                ToolTipTitle="Paste (Ctrl+V)"/>
            <r:ribboncommand x:key="CutCommand">
                CanExecute="OnCanExecute"
                LabelTitle="Cut"
                LargeImageSource="Images\Cut.png"
                ToolTipDescription="Cut the selection."
                ToolTipTitle="Cut (Ctrl+X)"/>
            
            <my:recipedataset x:key="recipeDataSet" xmlns:my="#unknown" />
            <collectionviewsource x:key="getAllCookbooksAndRecipesViewSource" source="{Binding Path=GetAllCookbooksAndRecipes, Source={StaticResource recipeDataSet}}" />

            <datatemplate x:key="TreeTemplateDetail">
                <textblock text="{Binding Source={StaticResource getAllCookbooksAndRecipesViewSource}, Path=RecipeName}" />
            </datatemplate>

            <hierarchicaldatatemplate x:key="MasterTemplate" itemssource="{Binding  Path=getAllCookbooksAndRecipesViewSource}" itemtemplate="{StaticResource TreeTemplateDetail}">
                <textblock text="{Binding Source={StaticResource getAllCookbooksAndRecipesViewSource}, Path=CookBook}" />                
            </hierarchicaldatatemplate>

        </r:ribboncommand></r:ribboncommand></r:ribboncommand></r:ribboncommand></resourcedictionary>

        
    </r:ribbonwindow.resources>
    
    <grid x:name="LayoutRoot" xmlns:x="#unknown">
        <grid.rowdefinitions>
            <rowdefinition height="Auto"></rowdefinition>
            <rowdefinition></rowdefinition>
        </grid.rowdefinitions>
        <grid.columndefinitions>
            <columndefinition width="Auto" minwidth="150"></columndefinition>
            <columndefinition></columndefinition>
        </grid.columndefinitions>

        <r:ribbon title="Organizer" x:name="mainRibbon" height="Auto" grid.columnspan="2">
            <r:ribbon.applicationmenu>
                <r:ribbonapplicationmenu>

                    <r:ribbonapplicationmenuitem>
                        <r:ribbonapplicationmenuitem.command>
                            <r:ribboncommand labeltitle="_Save">
                                             LargeImageSource="images\save2.png" 
                                             Executed="Save_Executed" />
                        </r:ribboncommand></r:ribbonapplicationmenuitem.command>

                    </r:ribbonapplicationmenuitem>

                    <r:ribbonapplicationmenuitem>
                        <r:ribbonapplicationmenuitem.command>
                            <r:ribboncommand labeltitle="_Close">
                                             LargeImageSource="images\Close.png" 
                                             Executed="Close_Executed" />
                        </r:ribboncommand></r:ribbonapplicationmenuitem.command>
                    </r:ribbonapplicationmenuitem>

                    <r:ribbonapplicationmenuitem>
                        <r:ribbonapplicationmenuitem.command>
                            <r:ribboncommand labeltitle="_Print">
                                             LargeImageSource="images\Printer.png" 
                                             Executed="Print_Executed" />
                        </r:ribboncommand></r:ribbonapplicationmenuitem.command>
                    </r:ribbonapplicationmenuitem>

                    
                </r:ribbonapplicationmenu>
            </r:ribbon.applicationmenu>
            
            <r:ribbontab label="Home">
                <r:ribbongroup name="Clipboard" hasdialoglauncher="True" command="{StaticResource ClipboardGroupCommand}">
                    <r:ribbonbutton command="{StaticResource CopyCommand}"></r:ribbonbutton>
                    <r:ribbonbutton command="{StaticResource PasteCommand}"></r:ribbonbutton>
                    <r:ribbonbutton command="{StaticResource CutCommand}"></r:ribbonbutton>
                </r:ribbongroup>
            </r:ribbontab>

            <r:ribbontab label="Recipes" />
            <r:ribbontab label="Menus" />
            <r:ribbontab label="Shopping" />
            <r:ribbontab label="Options" />
            <r:ribbontab label="Tools" />
        </r:ribbon>

        <tabcontrol grid.row="1" grid.column="0" name="tabControlCookBook" margin="0,0,5,0">
            <tabitem name="tabCookBooks" header="My Library">
                <treeview name="treeView1" datacontext="{StaticResource getAllCookbooksAndRecipesViewSource}" itemssource="{Binding}" itemtemplate="{StaticResource MasterTemplate}" removed="White" width="Auto" margin="0,0,5,0" />                
            </tabitem>            
        </tabcontrol>

        <gridsplitter grid.row="1" grid.column="0" horizontalalignment="Right" removed="Silver" width="5" />

        <tabcontrol grid.row="1" grid.column="1" name="tabOther">
            <tabitem name="tabView" header="View">
                <webbrowser height="Auto" horizontalalignment="Left" name="webBrowser1" verticalalignment="Top" width="Auto" />
            </tabitem>
            <tabitem name="tabEdit" header="Edit">
                <webbrowser height="Auto" horizontalalignment="Left" name="webBrowser2" verticalalignment="Top" width="Auto" />
            </tabitem>
        </tabcontrol>
        
    </grid>
</r:ribbonwindow>