Hi Tie-Qiang,
Indeed, @auto_tlrc does not accept NIFTI input. It is a script
that calls many programs, and I suspect dealing with NIFTI
datasets would have been a large headache.
So please just change to AFNI format first:
3dcopy OLD.nii new
@auto_tlrc -base TT_N27+tlrc -input new+orig
----
Regarding the libXm.so.3 error, that is because you do not have
the relevant motif library installed on your computer. But it
might not be necessary, depending on your OS.
What operating system and version are you using?
Also, what are the 2 lines of output from "afni -ver"?
- rick