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Hello,

I tried to create snapshots with tkmedit, but the output snapshot files are all black. This is the command: 

export SUBJECTS_DIR=./
tkmedit blubber norm.mgz

tkmedit shows the image correctly, but when taking a snapshot it is all black. No error messages are displayed. I was wondering if anybody else had a similar issue and if there is any solutions to that.

Thank you very much, in advance.

Sincerely, 
Ehsan Adeli, Ph.D.,
Stanford University