Hi Ehsan

what is the command you ran? And what is your SUBJECTS_DIR env variable set to when you run it?

cheers Bruce On Mon, 25 Feb 2013, Ehsan Tadayon wrote:

Hello I'm new to freesurfer, I have some .nii images that i converted to  .mgz via mri_converter in freesurfer and run recon-all on them!  it seems everything is fine and i've got stats in m subjects folders. but when I try to do tkmedit to visualize images it gives me an error:

Tkmedit couldn't read the volume you specified.   This could be because the image format wasn't recognized,   or it couldn't find the proper header,   or the file(s) were unreadable,   or it was the wrong size.

what should I do now?!

thanks