A large amount of subjects got segmentation white matter bad (some dark white matter cannot be recognition below 57 slices).  Attachment show this problem.  I used 'kvlEMSegment brainmask.mgz 3 4 4 '  to segment white matter again.  while there reported     kvlEMSegment: command not found. Do you have any solutions for this? Thanks in advance.

Best wishes,

Lejia