Re: [Freesurfer] segmentation fault during make_average_surface Hello Nick, Thanks for your reply, here are the info: mris_make_average_surface -all-info ProgramName: mris_make_average_surface ProgramArguments -all-info ProgramVersion $Name: $ TimeStamp: 05/09/09-07:09:31-GMT CVS: $Id: mris_make_average_surface.c, v 1.9 2004/01/29 14:59:12 tosa Exp $ User: root Machine: ltscopc12 Platform: Linux PlatformVersion: 2.4.21-4 EL CompilerName: GCC CompilerVersion: 29600 cat /etc/redhat-release Red Hat Enterpris