Dear Freesurfer community, Whenever i try to launch the tracula preprocessing, using "set dob0 = 1 " and the following command line: trac-all -prep -no-isrunning -c '/home/elia/scripts/Tracula/LCL/Tracula-B0-Input_zip/tracula.config It stops, giving me errors like these: niiRead(): error opening file /home/elia/scripts/Tracula/LCL/Tracula-B0-Input_zip/T13D/timePoint1/dmri/dwi.nii.gz ERROR: reading /home/elia/scripts/Tracula/LCL/Tracula-B0-Input_zip/T13D/timePoint1/dmri/dwi_frame0.nii.gz While setting "dob0 = 0" everything runs smoothly. Can you help me please? I'll attach the log + dmrirc (tracula.config) Best,Elia. -------------------------------------------------------------------------------------------------------------- Freesurfer version: freesurfer-Linux-centos4_x86_64-stable-pub-v5.3.0 Linux Distribution: Ubuntu 12.04 precise - Ubuntu 12.04.4 LTS Environment/Version: Linux king-ubuntu 3.2.0-56-generic #86-Ubuntu SMP Wed Oct 23 09:20:45 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux