C:\Users\Niko\Documents\monitor>dispread -v -yl -H -V -Ibw monitor_140_f3000 Number of patches = 3000 Setting up the instrument Instrument Type: ColorMunki Serial Number: <myserial> Firmware version: 288 Chip ID: 01-a1<id> Version string: 'colormunki FW V1.32 Build Nr. 1303' Calibration Ver.: 6 Production No.: <productno> Set instrument sensor to calibration position, and then hit any key to continue, or hit Esc or Q to abort: Calibration complete Place instrument on test window. Hit Esc or Q to give up, any other key to continue: patch 2561 of 3000 Sample read failed due to misread Hit Esc or Q to give up, any other key to retry: Sample read failed due to misread Hit Esc or Q to give up, any other key to retry: The instrument can be removed from the screen. dispread: Error - test_crt returned error code 1 What's the problem? I wasted half a day to hardware calibrate and profile the panel :-( Darkbasic