ContextMenu.MenuItem.Icon , Image does not load

Question

Hello,

I've got a contextmenu in silverlight 4 that does not load icon images.

Well, there's is one case when the image is load : when the same image appears in a control in the page.

Does anyone have an idea for this problem ?

<UserControl.Resources>                               
  <Converters:DateConverter x:Key="DateConv"/>
      <Namespace_ConsoleSilverlight_ViewModel:FooterViewModel x:Key="FooterViewModelDataSource" d:IsDataSource="True"/>
</UserControl.Resources>


<Grid x:Name="LayoutRoot" Style="{StaticResource LayoutRootGridStyle}" >
  <toolkit:ContextMenuService.ContextMenu>
    <toolkit:ContextMenu >
      <toolkit:MenuItem Header="Namespace" x:Name="Namespace" Click="Namespace_Click">
        <toolkit:MenuItem.Icon>
          <Image Height="16" Width="16" Source="/Namespace.ConsoleSilverlight.Client;component/Assets/Resources/Images/128x128.png"/>
        </toolkit:MenuItem.Icon>
      </toolkit:MenuItem>
              <toolkit:MenuItem Header="Start">
        <toolkit:MenuItem.Icon>
          <Image Height="16" Width="16" Source="/Namespace.ConsoleSilverlight.Client;component/Assets/Resources/Images/start.png"/>
        </toolkit:MenuItem.Icon>
      </toolkit:MenuItem>
    </toolkit:ContextMenu>
  </toolkit:ContextMenuService.ContextMenu>
  <Border x:Name="ContentBorder" Style="{StaticResource ContentBorderStyle}" >
    <navigation:Frame x:Name="ContentFrame" Style="{StaticResource ContentFrameStyle}" 
             Source="/Home" Navigating="ContentFrame_Navigating" Navigated="ContentFrame_Navigated" NavigationFailed="ContentFrame_NavigationFailed" Padding="0,30,0,40" >
      <navigation:Frame.UriMapper>
        <uriMapper:UriMapper>
          <uriMapper:UriMapping Uri="" MappedUri="/Views/Home.xaml"/>
          <uriMapper:UriMapping Uri="/Home/Agent/{AgentId}" MappedUri="/Views/Home.xaml?AgentId={AgentId}"/>
          <uriMapper:UriMapping Uri="/Home/Server/{ServerId}" MappedUri="/Views/Home.xaml?ServerId={ServerId}"/>
          <uriMapper:UriMapping Uri="/{pageName}" MappedUri="/Views/{pageName}.xaml"/>
        </uriMapper:UriMapper>
      </navigation:Frame.UriMapper>
    </navigation:Frame>
  </Border>

  <Grid Style="{StaticResource NavigationOuterGridStyle}">
    <Grid x:Name="NavigationGrid" Style="{StaticResource NavigationGridStyle}">

      <Border x:Name="BrandingBorder" Style="{StaticResource BrandingBorderStyle}">
        <StackPanel x:Name="BrandingStackPanel" Style="{StaticResource BrandingStackPanelStyle}">

          <Image Source="/Namespace.ConsoleSilverlight.Client;component/Assets/Resources/Images/128x128.png" />
          <TextBlock x:Name="ApplicationNameTextBlock" Style="{StaticResource ApplicationNameStyle}" 
              Text="{Binding Strings.ApplicationName, Source={StaticResource ApplicationResources}}"/>

        </StackPanel>
      </Border>

      <Border x:Name="LinksBorder" Style="{StaticResource LinksBorderStyle}">
        <StackPanel x:Name="LinksStackPanel" Style="{StaticResource LinksStackPanelStyle}">

          <HyperlinkButton x:Name="Link1" Style="{StaticResource LinkStyle}" 
                 NavigateUri="/Home" TargetName="ContentFrame" Content="{Binding Strings.HomePageTitle, Source={StaticResource ApplicationResources}}"/>

          <Rectangle x:Name="Divider1" Style="{StaticResource DividerStyle}"/>

          <HyperlinkButton x:Name="Link2" Style="{StaticResource LinkStyle}" 
                 NavigateUri="/About" TargetName="ContentFrame" Content="{Binding Strings.AboutPageTitle, Source={StaticResource ApplicationResources}}"/>

        </StackPanel>
      </Border>

    </Grid>

    <Border Style="{StaticResource LoginContainerStyle}">
      <login:LoginStatus x:Name="loginStatus"/>
    </Border>
  </Grid>

  <Grid VerticalAlignment="Bottom" x:Name="grdFooter" Background="#FF484848" Height="42" DataContext="{Binding Source={StaticResource FooterViewModelDataSource}}">
    <Grid.RowDefinitions>
      <RowDefinition/>
      <RowDefinition/>
    </Grid.RowDefinitions>
      <Grid.ColumnDefinitions>
      <ColumnDefinition/>
      <ColumnDefinition/>
      <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <TextBlock Grid.Column="0" Grid.Row="0" Grid.RowSpan="2" Text="{Binding CurrentInstance.TimeElaspedFromLastMessage,StringFormat='Dernier message reçu il y a : \{0:mm\\:ss\}'}" Foreground="White" Margin="5,0,0,0" VerticalAlignment="Center" FontSize="12"/>
    <TextBlock Visibility="Collapsed" Grid.Column="0" Grid.Row="1" Text="{Binding CurrentInstance.LastMessage,StringFormat='Message : \{0\}'}" Foreground="White" Margin="5,0,0,0" FontSize="12" VerticalAlignment="Center"/>
    <TextBlock HorizontalAlignment="Right" Grid.Column="2" Grid.RowSpan="2" Text="{Binding CurrentInstance.CurrentTime,Mode=OneWay,Converter={StaticResource DateConv}}" Foreground="White" Margin="0,0,5,0" VerticalAlignment="Center" FontSize="12"/>
  </Grid>


</Grid>

I noticed that : "A first chance exception of type 'System.Web.HttpException' occurred in System.Web.dll" was thrown each time the icon should be draw unless the image is already present in th document