I'm finally getting my feet wet with dispcal. But, so far, my work is not crowned with success :( Here's my command line: > dispcal -v -a -m -i94 -yl -t5000 -b95 -gl -e caltest And this is what I'm getting: > Setting up the instrument > Offset calibration: > Place instrument on a dark surface. > Hit Esc to skip, any other key to start calibration: > Offset calibration successful > The instrument can be removed from the dark surface. > Setting up the instrument > RegisterProcess failed (error = -50) > Abort trap I can't get pass that RegisterProcess error? I'm on MacOSX.4.9 with V0.60. Roger Breton