[flexcoders] Flex 2 underline in datagrid

[dominique.bessette]

does anyone know how to underline in a datagrid without underlining 
the header?  I've tried to use textDecoration="underline" in the 
datagridcolumn and then use a headerStyleName="headerStyle"  where 
textDecoration: none in the <mx:Style> tag,  but it's not working.  
For some reason Flex 2 doesnt recognize textDecoration in the style 
tag, but it does in the data grid column.

Thanks