Wife rang me up at work saying the car was playing up (Mk2 Kuga Powershift). Got home and managed to get it to fault again. Managed to pull code P0766, shift solenoid D stuck. First port of call is to flush the box, only did the oil change 15,000 miles ago though with genuine Ford oil + filter. If that doesn't work I'll have to take the 'box to bits and clean/ replace the solenoid (looks quite an interesting job..).