I am processing a 210 patch ti3 file with: colprof -v -qh RGB-210-patch and it returns: ....snip... Creating B to A tables 0%colprof: Warning - Reverse Cell Cache exausted, processing in chunks colprof: Error - Not enough memory to process in chunks The file that is failing is readout from a limited gamut B&W inkset, http://www.PaulRoark.com/BW-Info/UT-3D_Readme.pdf. It manages to complete with -qm A 210 patch file from 6-ink pigment Epson worked only on -qh, failed on -qu. It doesn't seem much to ask for on a 3GB machine. Any idea what I'm doing wrong? This is on OS X, ArgyllCMS 1.0.1 Many thanks, Marko