I'm getting a strange error that I don't know how to parse when I run afni_proc.py. The command follows; $s is a subject ID, and the stim_files are 2 columns of 1544 TRs each, with each element either a 1 or a 0, while the datasets are 8 runs of 195 TRs each (which adds up to 1544 when you subtract 2 TRs per run):

afni_proc.py \
-subj_id ${s}.blur0 \
-blocks tshift despike volreg mask scale regress tlrc \
-dsets raw_data/${s}_run?+orig.HEAD \
-tcat_remove_first_trs 2 \
-copy_anat anat/${s}_MPRAGE_r5+orig \
-regress_stim_files regressors/${s}_allruns_vsvc.1D \
-regress_stim_labels exp vc

It gets through the "scale," block, then fails on the "regress" block. Here's the trace I get from attempting this:

** warning: removing first 2 TRs from beginning of each run
--> the stimulus timing files must reflect the removal of these TRs
-- tcat: reps is now 193
-- volreg: base/sub indices are 0, 2
++ updating polort to 3, from run len 386.0 s
-- old stim list: ['stimuli/513_allruns_vsvc.1D']
++ new stim list: ['stimuli/stim_times.01.1D', 'stimuli/stim_times.02.1D']
Traceback (most recent call last):
File "/usr/csbmb/pkg/AFNI/afni/bin/afni_proc.py", line 1513, in <module>
run_proc()
File "/usr/csbmb/pkg/AFNI/afni/bin/afni_proc.py", line 1501, in run_proc
rv = ps.create_script()
File "/usr/csbmb/pkg/AFNI/afni/bin/afni_proc.py", line 997, in create_script
cmd_str = BlockCmdFunc[block.label](self, block)
File "/usr/pni/pkg/AFNI/AFNI_2010_11_14_NIH.CentOS.5.3_64/bin/db_mod.py", line 2168, in db_cmd_regress
(ind+1, proc.stims[ind], basis[ind])
IndexError: list index out of range

I have a feeling this is dead easy, but I can't figure it out. Help?