Hello all,

I have been using freesurfer-Darwin-OSX-stable-pub-v6.0.0-2beb96c on macos high sierra, then I updated to mojave 10.14. freeusrfer was working all good for a while. BUT, for unknown reasons, I am no longer able to overlay the significance maps using tksurfer and cant open qdec, like below:

command: tksurfer fsaverage lh inflated

output error:

subject is fsaverage

hemi is lh

surface is inflated

surfer: current subjects dir: /Users/wsweidan/Desktop/GLM_trial

surfer: not in "scripts" dir ==> using cwd for session root

surfer: session root data dir ($session) set to:

surfer: /Users/wsweidan/Desktop/GLM_trial

checking for nofix files in 'inflated'

Reading image info (/Users/wsweidan/Desktop/GLM_trial/fsaverage)

Reading /Users/wsweidan/Desktop/GLM_trial/fsaverage/mri/orig.mgz

surfer: Reading header info from /Users/wsweidan/Desktop/GLM_trial/fsaverage/mri/orig.mgz

surfer: vertices=163842, faces=327680

surfer: single buffered window

surfer: tkoInitWindow(fsaverage)

setting percentile thresholds (-1.00, 0.00, 0.00)

surfer: using interface /Applications/freesurfer/tktools/tksurfer.tcl

Reading /Applications/freesurfer/tktools/tkm_common.tcl

Reading /Applications/freesurfer/tktools/tkm_wrappers.tcl

Reading /Applications/freesurfer/lib/tcl/fsgdfPlot.tcl

Reading /Applications/freesurfer/tktools/tkUtils.tcl

Error sourcing /Applications/freesurfer/tktools/tksurfer.tcl:

bad distance "0.125i": can't be negative

reading white matter vertex locations...

% Floating exception

command: qdec

output error: Floating exception

I reinstalled freesurfer again and I still get the same errors. Freeview works just fine. Any input of how to solve this issue?

Thanks in advance,

Wafaa