Dear Freesurfer Developers,

6.0 Stable in OS X seems to have some bugs.

Monte-Carlo simulation works fine in 10mm FWMH, but error shows up in 5mm or 0mm as below.

###Error Code###

ERROR: CSDread(): could not open /Applications/freesurfer/average/mult-comp-cor/fsaverage/lh/cortex/fwhm4/abs/th13/mc-z.csd

ERROR!

Error in Monte Carlo simulation: Error running mri_surfcluster!

###Error Code###

I found that the actual directory contains cud file  is fwhm04, and not fwhm4, so after I copied fwhm04 to fwhm4 in cortex directory, the simulation works.

I think it’s small bug, but can make many people (like me) confused.

Bests,

J.