problème calibration utouch

J'utilise :
UTFT myGLCD(ITDB32S,38,39,40,41);

UTouch myTouch( 6, 5, 4, 3, 2);

#define TOUCH_ORIENTATION LANDSCAPE

myTouch.InitTouch(TOUCH_ORIENTATION);

myGLCD.InitLCD(TOUCH_ORIENTATION);