Hi Mirko I had the same problem and solved it in the following manner: 1) Download only render.zip (2.4 MB, 16/3/2000, contains 3 files) from ftp://ftp.fil.ion.ucl.ac.uk/spm/spm99_updates/ 2) Unzip render_single_subj.mat, render_smooth_average.mat, render_spm96.mat with Powerarchiver (freeware, http://www.powerarchiver.com/) 3) Save the files render_single_subj.mat (1484 KB 16/3/2000 10:23) render_smooth_average.mat (1484 KB 16/3/2000 10:23) render_spm96.mat ( 512 KB 16/3/2000 10:23) into directory your_spm_directory/rend Regards. Griselda Univ. of Sao Paulo - Brazil http://www.hcnet.usp.br/inrad/sitecmn/neuropsychiatry/neuropsychiatry.htm ----- Original Message ----- From: "Mirko Diksic" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, October 03, 2001 5:14 PM Subject: help with SPM-99 > I have problem in getting my computer to read "render_*.* files with > SPM99 running under WINDOWS-2000. Using any of them I am getting error > as shown bellow. Does any one has idea what might be source of this > problem? I have hard time to believe that ALL of those files after three > reinstallation and of newly downloaded SPM99 file are corrupted. > > Many thanks, > > Mirko Diksic. > > ??? Error using ==> load > Unable to read MAT file D:\MATLABR12\toolbox\spm99\rend\render_s.mat > > File may be corrupt. >