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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

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