[flexcoders] Datagrid Weirdness - Lose arrow key functionality

[Barry]

Hi,
Can anyone help me out here?
I have a datagrid which when using the up and down arrow keys changed
the selected index of the grid. All normal there.
However, when I add an itemRenderer to one of the dataGrid Columns, I
lose that functionality.

        <mx:DataGrid x="0" y="40" width="100%" height="100%" id="lisDG"
dataProvider="{model.contactObjects}"  change="dataGridClick(event)">
                <mx:columns>
                <mx:DataGridColumn width="20" 
itemRenderer="com.pbsmedia.ccAdmin.comps.StatusRenderer" 
editable="false"/>
                        <mx:DataGridColumn width="40" sortDescending="true" 
sortable="true"
sortCompareFunction="Sorts.compareRegDate" headerText="Reg Date"
labelFunction="Sorts.doRegDateLabel"/>
                        <mx:DataGridColumn width="40" sortable="true"
headerText="Associate" dataField="ContactAssociate"/>
                        <mx:DataGridColumn width="100" sortable="true" 
headerText="Name"
dataField="ContactName" />
                        <mx:DataGridColumn width="100" sortable="true" 
headerText="Company"
dataField="ContactCompanyName" />
                        <mx:DataGridColumn width="40" sortable="true"
sortCompareFunction="Sorts.compareNextCall" headerText="Next Call"
labelFunction="doNextCallLabel"/>
                </mx:columns>
        </mx:DataGrid>


Any help much appreciated,
Barry