title: Flex 4 Scrollbar Skin does not resize
body: <p>I'm working on a Flex 4 application and I started customizing the interface with skins to give a whole new look.</p>
  
  <p>So, I've created two scrollbar skins in Flash Catalyst (one horizontal, one vertical).</p>
  
  <p>Its working great when I test the application through Catalyst so I took it and imported it on Flash Builder, copied the components and defined the new skins in my css file for the HScrollbar and VScrollbar.</p>
  
  <p>The skin is working, all the buttons are ok. But, the scrollbar isnt resizing for some reason. It remains in the same height I've designed it to be regardless of the content it is bound to.</p>
  
  <p>It scrolls the content in all the ways it should be but it doesnt resize and the thumb isnt getting all the way down.</p>
  
  <p>Also I've noticed the following.</p>
  
  <p>I have a custom component acting as a list. It extends Group and contains a Scroller. So at one place of the application the Scrollthumb is getting lower than on another place where the same custom list is used.</p>
  
  <p>I also have to mention that this scroller works perfectly without a custom skin.</p>
  
  <p>Anyone else having similar problems?</p>