I keep getting ??? Error using ==> spm_slice_vol Cant map view of file. It may be locked by another program. I can read the 4d volume in MRICron, but when I try spm_slice_vol, it just doesnt read it! Can someone please help. Is there some known problem in SPM5 with reading 4d volumes? Ashish Raj Assistant Professor of Computer Science in Radiology Co-Director, Radiology Image Processing Laboratory (RIPL) Weill Medical College of Cornell University 1300 York Avenue New York, NY 10044 Phone (o): 212-746-2473 Research: http://www.cs.cornell.edu/~rdz/medical.htm Recent publication: http://repositories.cdlib.org/postprints/2907