Does it makes any sense to anyone if QTR wont accept GRAY_CURVE="0;0 100;100" but will accept LINEARIZE_CURVE="0;0 100;100" ??I can change the curve value from CURVE_K to CURVE_Y but it will not accept GRAY_CURVE=Curve specified “0;0 100;100” but no valid data found at /Library/Printers/QTR/bin/quadprofile line 41.If I change GRAY_CURVE= to LINEARIZE_CURVE= QTR will accept the profile.FWIW: I am running Yosemite 10.9.5