Flex mobile air build- Scrollbar issue

Hi

I have a <s:List> control in my Flex mobile application. In mobile the
scrolling is working fine.

I made a release build of my Flex mobile project in to *air* installer
file. In desktop, after installing the file, i could not see the vertical
scrollbar. How to enable that? I need a normal scroll bar to be visible so
that users can use the scrollbar to view the data in list.

Below is my code snippet

<s:Scroller width="100%" height="100%" pageScrollingEnabled="true"
verticalScrollPolicy="on">
<s:VGroup width="100%" height="100%" paddingTop="10" paddingRight="20"
paddingLeft="20" paddingBottom="10">

<s:List id="myList" left="0" right="0" top="0" bottom="0"
change="applyTransition()" width="100%" height="100%"
dataProvider="{data}" borderVisible="true" styleName="myStyle">
<s:itemRenderer>
<fx:Component>
<s:IconItemRenderer label="{data.firstName} {data.lastName}"
messageField="city"/>
</fx:Component>
</s:itemRenderer>
</s:List>
</s:VGroup>
</s:Scroller>

Regards
Saju Thankathurai,