Problem with LABEL object

[Gianfranco Brescia]

Hi to all...I'he a problem with the angle of labels.
My map file is

LAYER
  NAME            "Grafo_Stradale"
  TYPE            line
...
  LABELITEM    "toponimo"
...
  CLASS
...
    LABEL
      ANGLE                  auto
      POSITION               auto
      COLOR                  0 0 150
      BACKGROUNDCOLOR        255 255 128
      BUFFER                 2
      SIZE                   small
    END
...
  END
...
END

The label is oriented like the line (street) but not the text!The text is
horizontal... how can I make the text oriented like the label and the street?
Thanks.