Border with Linear Gradient fill doesn't show border at run time
Here is my XAML

    <Border Grid.Column="1" BorderBrush="Black" Margin="5">
                    <Border.Background>
                        <LinearGradientBrush EndPoint=".5,1" StartPoint=".5,0">
                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                            <GradientStop Color="#FFf3f3f3" Offset="0.48"/>
                            <GradientStop Color="#FFededed" Offset="0.51"/>
                            <GradientStop Color="#FFFFFFFF" Offset="1"/>
                        </LinearGradientBrush>
                    </Border.Background>
                </Border>

I can see border at design time but it doesn't show at run-time. Why?

![Design Time as expected][1]
![Run time - can't see border][2]

Whats wrong with it?!
  [1]: http://i.stack.imgur.com/6l8kr.png
  [2]: http://i.stack.imgur.com/KMFSN.png
Border with Linear Gradient fill doesn't show border at run time
===

Here is my XAML

    <Border Grid.Column="1" BorderBrush="Black" Margin="5">
                    <Border.Background>
                        <LinearGradientBrush EndPoint=".5,1" StartPoint=".5,0">
                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                            <GradientStop Color="#FFf3f3f3" Offset="0.48"/>
                            <GradientStop Color="#FFededed" Offset="0.51"/>
                            <GradientStop Color="#FFFFFFFF" Offset="1"/>
                        </LinearGradientBrush>
                    </Border.Background>
                </Border>

I can see border at design time but it doesn't show at run-time. Why?

![Design Time as expected][1]
![Run time - can't see border][2]

Whats wrong with it?!
  [1]: http://i.stack.imgur.com/6l8kr.png
  [2]: http://i.stack.imgur.com/KMFSN.png