Vladimir Gajic wrote: > during my today's illumread-session I encuntered a problem with the > calibration of my i1 Pro. > It' s an old error I had in the past: dark calibration read failed. I could > solve the problem > by re-installing the usblib-driver on win xp. I rember that the > calibration-history had to be > deleted on mac, but on XP i have a problem with that. Or did I missed > something? Sorry, I'm not sure what you mean. Can you give me details of the problem ? Can you mail me the debug output when the problem happens (-D). Graeme Gill.