Rodolfo Villanueva wrote: > okay, i just re did the reading and the profile, and same result. This is a > screenshot of the resulting profile. > > http://i.imgur.com/h8W5u3T.png > > As you can see, it's like it's missing a hole part of it. > > What could be going wrong? As indicated by the poor profile fit report, you have bad readings. You need to get a good set of readings before making and evaluating the profile. To figure out what patches are in error, use profcheck -v2 and look for the largest delta E's. (The next release has a profcheck -s option to make this easier). It's likely that the problem patches are in a small number of strips. Either re-read those strips, or read those strips patches one by one using the chartread -p option. Graeme Gill.