try to chmod them! cheers- andreas ________________________________________ Von: FSL - FMRIB's Software Library [[log in to unmask]] im Auftrag von Irene Perini [[log in to unmask]] Gesendet: Freitag, 16. April 2010 11:48 An: [log in to unmask] Betreff: [FSL] proj_thresh command Hi all, I'm having problems at running both proj_thresh and find_the_biggest . The terminal just says that it doesnt find the command line even if both have been downloaded and are executable. Do you know why is that? Thanks for your help! Irene Perini Klinisk Neurofysiologi Blå Stråket 7, vån 4 Sahlgrenska Universitetssjukhuset 413 45 Göteborg