I have the same problem. This is what I have:
<chart chartTopMargin='25' majorTMNumber='4' bgAlpha='100' bgColor='F2F2F2' palette='2' lowerLimit='0' upperLimit='80' numberPrefix='$' numberSuffix=' M' showBorder='0' borderThickness='0' gaugeFillRatio='3' pivotRadius='8' gaugeInnerRadius='50' tickValueDistance='20' >
<colorRange><color minValue='0' maxValue='55' code='FF654F'/><color minValue='55' maxValue='75' code='F6BD0F'/>
<color minValue='75' maxValue='80' code='8BBA00'/></colorRange>
<trendpoints><point startValue='75' dashed='1' displayValue=' Goal: $75 M' color='666666' useMarker='1' markerColor='F1f1f1' markerBorderColor='666666' markerRadius='7' markerTooltext='Goal: $75 M'/></trendpoints>
<dials><dial value='27.5' showValue='1' rearExtension='10' baseWidth='10'/></dials>
<annotations><annotationGroup id='Grp1' showBelow='1'>
<annotation type='text' label='Total Business' font='Verdana' xPos='175' yPos='8' align='center' vAlign='middle' fontcolor='BE2F13' fontSize='10' isBold='1'/></annotationGroup></annotations>
</chart>
