WPF , render Transform, Anyone?

[mce]

I am using Blend to create a analog clock. However, i couldn't make the SecondHandle to move smoothly. Currently it is moving like jumping away every second. I want it to move smoothly across the time. Anyone knows how to achieve this?

I believe i need to do something on the rendering part. This is what i have now.

<Rectangle.RenderTransform>
  <TransformGroup>
    <ScaleTransform ScaleX="1" ScaleY="1"/>
       <SkewTransform AngleX="0" AngleY="0"/>
        <RotateTransform Angle="{DynamicResource dSecondAsAngle}"/>
         <TranslateTransform X="0" Y="0"/>
 </TransformGroup>
</Rectangle.RenderTransform>