Hi Iggy,

Would you be able to upload the data for this command,
so that I can reproduce it here?

If that is okay, it would be great to get:

- active-lp+orig.*
- full-mask+orig.*
- runs.1D
- full_stimulus.1D
- active.dfile

If you feel like it, you could even upload the assisted
and passive data. I cannot tell where the seg fault
occured, since the error still shows your $i variable.

Note that if this happens for just one subject, it is
often the case that there is something strange about
that data, like a stimulus file with all zeros.

At any rate, if you upload the data (via "Upload Data",
above [afni.nimh.nih.gov]),
I will look at it.

- rick