I noticed a couple of things with dispcal. First issue: There doesn't seem to be any warning if a specified .ccss file doesn't exist. In other words, if you're in the wrong directory, or you misspell the name of the ccss file there will be no warning. Here's an example: *Joe-Ciarcias-Mac-Pro:Argyll symphonyphoto$ dispcal -v -r -XblahHP_calibration_2.ccss Setting up the instrument Place instrument on test window. Hit Esc or Q to give up, any other key to continue: patch 3 of 3 Current calibration response: Black level = 0.14 cd/m^2 White level = 86.98 cd/m^2 Aprox. gamma = 2.16 Contrast ratio = 633:1 White chromaticity coordinates 0.3067, 0.3323 White Correlated Color Temperature = 6805K, DE 2K to locus = 9.9 White Correlated Daylight Temperature = 6799K, DE 2K to locus = 6.5 White Visual Color Temperature = 6394K, DE 2K to locus = 9.6 White Visual Daylight Temperature = 6546K, DE 2K to locus = 6.3 The instrument can be removed from the screen.* --blahHP_calibration_2.ccss does not exist yet I received no warning. Here's the correct version: Joe-Ciarcias-Mac-Pro:Argyll symphonyphoto$ dispcal -v -r -XHP_calibration_2.ccss Setting up the instrument Place instrument on test window. Hit Esc or Q to give up, any other key to continue: patch 3 of 3 Current calibration response: Black level = 0.14 cd/m^2 White level = 86.90 cd/m^2 Aprox. gamma = 2.16 Contrast ratio = 633:1 White chromaticity coordinates 0.3123, 0.3288 White Correlated Color Temperature = 6526K, DE 2K to locus = 4.7 White Correlated Daylight Temperature = 6526K, DE 2K to locus = 0.2 White Visual Color Temperature = 6355K, DE 2K to locus = 4.5 White Visual Daylight Temperature = 6521K, DE 2K to locus = 0.2 The instrument can be removed from the screen. Obviously not a deal breaker, but it's getting cold in New England and sometimes my fingers don't move well when I'm keeping the heat down to save on oil (that and the Mac Pro plus a RAID stack goes a long way to heat my editing room :-) ). Here's the other issue... I ran the following command: dispcal -v -d1 -c1 -o -qm -yl -b110 -w0.3132,0.3297 -G2.13 -F -XHP_calibration_2.ccss HP_Quick_Shaper From what I understand, this should generate a matrix profile. I just wanted to generate a quick one that I could use with targen. What's a bit strange is that after copying this profile to my profiles folder and selecting it for the HP LP3065, it affects BOTH of my screens (my 2nd screen is an NEC 2690). I have a white background up on the NEC and the second I select the dispcal generated profile on the HP, the white background on the NEC turns purple On the HP you can also tell something has gone awry as interface items like the menu bar turn yellow (and not an incorrectly entered white point yellow, but really really yellow. I'd say this was an OS X issue but this is the only profile that this happens with. I tried generating it a few times and I get the same results every time. Now if I take away the gamma, white point, brightness, and quality settings: dispcal -v -d1 -c1 -o -yl -F -XHP_calibration_2.ccss HP_Quick_Shaper2 Then it works. Okay... taking it slow, let's just add white point back in... ispcal -v -d1 -c1 -o -yl -w 0.3132,0.3297 -F -XHP_calibration_2.ccss HP_Quick_Shaper3 Doesn't work, changing the primary monitor to this profile also messes up the NEC2690. This just doesn't make any sense. Seems like a definite OS bug but yet, this is the only profile I have that this happens with. Am I doing something wrong? Cheers, Joe