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My best guess is that the data were converted to NIFTI format by doing some processing within SPM5. This would change the origin fields in the headers to something that SPM2 doesn't understand - therefore giving the spatial normalisation some extremely bad starting estimates. The Check reg button should illustrate this. Best regards, -John On Tuesday 09 August 2005 14:39, Ali saffet Gonul wrote: > Hi all > > I am using SPM2 with MATLAB 6.5 Release 13 under > windows XP. During normalization of some images but > not all I have a warning message of > > Warning: Matrix is close to singular or badly scaled. > Results may be inaccurate. > > It is interesting that I normalized the same images > two months ago w/o any similar messages. I have > checked the e-mails and read John’s answer to a > similar message during segmentation. But I could not > solve the problem. I would be very happy if I can have > an advise from anybody. > > Best > > Ali Saffet Gonul, MD > > Ege Uni School of Med. > Dept of Psychiatry > Izmir Turkey > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com