The most likely cause of this NOTE is the presence of a duplicate record someplace in the data.  The example data above got munged during cutting and pasting, so I can't tell if that is the problem.  The second most likely cause is an overparameterized model.  Try attaching a file in good shape regarding the data (it would be nice to have the one that works, and the one that throws the NOTE, for comparison), and maybe we can track this down. Steve Denham ... View more