hi, there are 3 versions of software fitted to this model and it depends on what the serial number is. try pressing start/cancel button for a few seconds until all lights come on. then press both the start/cancel button and the on/off button together-you should get the words ' d oFF ' in the display. if this does not work press start / cancel for a few seconds until all lights come on. then press both the start/cancel button and the on/off button and the top left option button together until 'd-oFF ' appears. this should sort you out but if this does not help, call back the manufacturer and give them the serial no.
knowitall, May 2009