I just commented on a similar issue in one of the other recent threads, but my reply isn't showing up.
The header/data structure of the reference files don't play well together. When working with RGB you just copy this to a txt file, and then use it to import a patch set, then save the target as a tiff. you then load the same set in the target manager in the measurement tab of ColorPort and it should measure without any problem.
255 255 255
242 242 242
230 230 230
217 217 217
204 204 204
191 191 191
179 179 179
166 166 166
153 153 153
140 140 140
128 128 128
115 115 115
102 102 102
89 89 89
77 77 77
64 64 64
51 51 51
38 38 38
26 26 26
13 13 13
0 0 0
Best,
Richard Boutwell
Richard Boutwell
www.RichardBoutwell.com
www.BWMastery.com