You are right, sorry! Here is the new bvecs file with the rows changed (and still normalised). Saad.  On 26 Jun 2007, at 12:42, Agnieszka Burzynska wrote: > Dear Saad, > In your attachment I found only the 3 raws of non-corrected bvecs. > Did you send me the right file? > Thank you for all help, > Aga > ------------------------------------------------------------------------ --- Saad Jbabdi, Postdoctoral Research Assistant, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222545 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~saad ------------------------------------------------------------------------ ---