[flexcoders] LineSeries interpolateValues=false

[nmunro271]

Any idea how to get this to actually work? It insists on linking 
segments:

<mx:LineSeries dataProvider="{dp}" yField="f" xField="d" 
displayName="Flow (m3/hr)" interpolateValues="false" >
  <mx:lineStroke>
    <mx:Stroke color="{FLOW_COLOR}" weight="3"/>
  /mx:lineStroke>
</mx:LineSeries>

The x axis is a category field uisng a date as a string rather than a 
DateTimeAxis, does this matter?

Thanks,

Neil.