hello all, need some help, I have a monochrome touch screen, when I power it up it initializes fine. It then proceeds to the Clipsal CIS - (Press Next to Continue) screen. from this screen, when i touched it, it not responding. i have try to re programmed the unit, but it still the same. i thounght i was a calibration problem, from the piced, i connect it to the unit, dan change it to calibration unit. but it also can't be calibrate.. seem like it a hardware probelm.. maybe the touch sensor or something like that.. can any one help me..