Hello Emmanuel, > I'll try tomorow to acclimatize my munki and to use the black drift > compensation and the ambient light sensor. you should make sure _not_ to use the ambient light sensor (in the monitor), this would make the measurement unpredictable - sorry, if this was not clear. > About your link, what am I suppose to see on the jpg? Currently I see number > from 1 to 8 with the 1 and 2 very sligthly visible. Ideally it should be possible to faintly see the dark and the bright "1", and the background should be deep black and bright white. Regards, Juergen