I have defined an List control in a module with the following attributes:

<mx:List id="aListBox" dataProvider="{aXML}" selectable="false"
verticalScrollPolicy="auto" horizontalScrollPolicy="auto" width="150"
height="200" rowHeight="20" columnWidth="150"
itemRenderer="CustomerListBoxItem" cornerRadius="5"
itemClick="OnItemClick(event)" />

My custom item renderer is defined as follows:
<?xml version="1.0" encoding="utf-8"?>
<mx:HBox width="100%" horizontalScrollPolicy="off"
xmlns:mx="http://www.adobe.com/2006/mxml" paddingLeft="10" paddingBottom="0"
paddingTop="0" paddingRight="0" buttonMode="true" >
<mx:Image id="imgCustIcon" visible="true" horizontalAlign="right"
source="{'../../' + data.attribute('ImageUrl').toString()}" />
<mx:LinkButton id="AppLinkLabel" label="{data.attribute('Text').toString()}"
paddingLeft="0" paddingTop="0" paddingBottom="0" fontFamily="Verdana"
fontSize="12" fontWeight="normal" rollOverColor="white" selectionColor="white"
/>
</mx:HBox>

But whatever the setting I do the Horizontal scroll bars doesn't show up on
the list control when the text goes beyond the width of the list control.
Anybody know why this would be.. Thanks