Calibrate Touchscreen

I am having trouble with the calibration of a touch screen for kiosk system. I have install xinput_calibrator and executed: $ xinput_calibrator -v DEBUG: XInputExtension version is 2.3 DEBUG: Skipping virtual master devices and devices without axis valuators. DEBUG: Skipping device 'Virtual core XTEST pointer' id=4, does not report Absolute events. DEBUG: Skipping device 'PS/2 Generic Mouse' id=12, does not report Absolute events. DEBUG: Selected device: MicroTouch Systems, Inc. MicroTouch USB Touchscreen - EX II DEBUG: Not usbtouchscreen calibrator: Not a usbtouchscreen device DEBUG: Not evdev calibrator: Evdev: invalid "Evdev Axis Calibration" property format Calibrating standard Xorg driver "MicroTouch Systems, Inc. MicroTouch USB Touchscreen - EX II" current calibration values: min_x=0, max_x=65535 and min_y=0, max_y=65535 If these values are estimated wrong, either supply it manually with the --precalib option, or run the 'get_precalib.sh' script to automatically get it (through HAL). DEBUG: Found that 'MicroTouch Systems, Inc. MicroTouch USB Touchscreen - EX II' is a sysfs name. DEBUG: Adding click 0 (X=323, Y=768) DEBUG: Adding click 1 (X=970, Y=766) DEBUG: Adding click 2 (X=321, Y=253) DEBUG: Adding click 3 (X=969, Y=247) --> Making the calibration permanent here<-][1]