line chart horizontal Axis Points problome

[ITProgrammer985]

Hi all
i am using flex chart and this is the code

<mx:AxisRenderer xmlns:mx="http://www.adobe.com/2006/mxml" tickPlacement="none"
                 labelRotation="50" fontFamily="Myriad Pro" fontSize="15" fontAntiAliasType="normal">
    <mx:labelRenderer>
        <mx:Component>
            <mx:Label >
                <mx:Script>
                <![CDATA[
                    import mx.collections.ArrayCollection;
                    import com.weightwatchers.framework.vo.LightTrackerDayVO;
                    import com.weightwatchers.progressReport.model.ProgressReportModelLocator;
                override public function set data(value:Object):void
                {
                    var daysCollection :ArrayCollection;
                    var day: LightTrackerDayVO;
                    var weeks:ArrayCollection;
                    var number:int;
                    var date:int;
                    var dateTime:int;
                    var month:int;
 
                   super.data = value;
                   daysCollection = ProgressReportModelLocator.instance.lastFourWeeksDays;
 
                   if (value != null && value.hasOwnProperty("position"))
                   { 
                           date =  parseInt(value.value.date);
                           dateTime = parseInt(value.value.time);
                           month =  parseInt(value.value.month+1);
                           for(number=0; number < daysCollection.length ; number++)
                        {
                            if (number==0 || number==7 ||number==14 ||  number==21)
                               {
                                   day = ProgressReportModelLocator.instance.lastFourWeeksDays.getItemAt(number)as LightTrackerDayVO;
 
                                   if (checkDate(day.ApplicableDate.time,dateTime))
                                   {
                                       text  = date+"/"+month;
                                       break;
                                   }
                               }
                            else
                            {
                                   text = "";
                                   width = 0;
                            }
 
                        }
                   }
                   else if (value != null && !value.hasOwnProperty("position"))
                   {
                           text  = date+"/"+month;
                   }
                   /*else if (value != null && !value.hasOwnProperty("position"))
                   {
                           text  = date+"/"+month;
                   }*/
 
                }
 
                /**
                * @private
                * 
                */
                private function checkDate(day:int,date:int):Boolean
                {
                       if (date == day)
                       {
                           return true;
                       }
                       else
                       {
                           return false;
                       }
                }
                ]]>
                </mx:Script>
            </mx:Label>
        </mx:Component>
    </mx:labelRenderer>
</mx:AxisRenderer>

the problem is the labels in x-axis is appearing in a very small font i tried to chang the font size the font famiy and using gutters nothing worked please any one have a solution
thanks