I'm getting an error in xicclu: xicclu -g -fb -ir profile.icc --> xicclu: Error - icxLu_comp_bk_point: Black point powell failed The profile is here: <http://www.rgb2cmyk.co.uk/i/PSO_Uncoated_MaxK_PG.icc> And seems to work OK -- apart from causing problems with xicclu. Any ideas as to why? -- Martin Orpen Idea Digital Imaging Ltd