Hi freesurfer，

I installed the package of freesurfer according to the intruction of freesurfer website. But when I checked whether it was installed successfully, I inputed

the commands following:

1) tksurfer bert rh pial

Couldn't create output file .xdebug_tksurfersubject is bert
hemi is rh
surface is pial
surfer: current subjects dir: /usr/local/freesurfer/subjects
surfer: not in "scripts" dir ==> using cwd for session root
surfer: session root data dir ($session) set to:
surfer: /usr/local/freesurfer/bin
surfer: can't create file surfer.log in cwd
surfer: surfer.log created in /tmp
surfer: session root data dir ($session) reset to:
surfer: /tmp
Reading image info (/usr/local/freesurfer/subjects/bert)
Reading /usr/local/freesurfer/subjects/bert/mri/orig.mgz
surfer: Reading header info from /usr/local/freesurfer/subjects/bert/mri/orig.mgz

2) tkmedit bert orig.mgz

Couldn't create output file .xdebug_tkmedit

===================================
ERROR: A segfault has occurred. This is not your fault,
: but is most likely an unrecoverable error and has
: made the program unstable.
:
: Please send the contents of the file .xdebug_tkmedit
: that should be in this directory to freesurfer@nmr.mgh.harvard.edu
:
: Now exiting...
:

3) qdec

qdec.bin: error while loading shared libraries: libXss.so.1: cannot open shared object file: No such file or directory
yxk-ThinkStation-D30:/usr/local/freesurfer/bin>

Thus, I want to know the reason why these problems occurred, and the solution to these problems.

Thank you very much

Meng