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Dear FSL community, I want to run FEAT without any EVs except confound EVs. So my .fsf file contains 'set fmri(evs_orig) 0' and 'set fmri(evs_orig) 0'. If I now run FEAT the second and third lines of the FEAT report read as follows. ######################### # /usr/lib/fsl/5.0/feat_model design # terminate called after throwing an instance of 'NEWMAT::IndexException' ######################### The rest of the FEAT run does not throw any errors. In addition to the first, failing call to feat_model, feat_model is called a second time in the same FEAT report, but this time in the Stats section. The command is "/usr/lib/fsl/5.0/feat_model design confoundevs.txt", and this call succeeds. By the way, if I add some "normal" EVs in addition to the confound EVs, no error is thrown. Can I safely ignore the first exception? And if so, is the first call to feat_model required at all if the rest of the script runs without errors? Cheers, Klaus