I just tried calibrating my LaCie CRT monitor, and got an error message that said my Black Luminance was too low to calibrate, and I had to do part of the calibration manually. It also said that this is not a sign that my monitor is going bad. Ive had the monitor for several years. It is a refurbished one that LaCie replaced my original with. Never a problem before. As you can see from the screen shots of my last 3 calibrations below, they have always been fairly consistent, except for the one I just did. Black Luminance was 0.07. Normally it is between 0.21 and 0.24.
Is it time to start looking for a new monitor? I bought the monitor new in June 2005, and it was replaced with a refurb in Sept 2006.
Below are screen shots from my last 3 monitor calibrations, starting with 3 calibrations ago to the one I just did.