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| I was making a change in the conditions of my experiment so the header | file chnaged. After doing that I needed to edit the header file by setting | the origin in x,y,z. after doing realignment I was trying to do corregistration | and this error message came: " There is not enough overlap in the images to | obtain a solution please check that your header information is ok" , | spm_offsub3. I tried also without doing the header edit in spm and the same | error message came. Could you please tell me if possible what should I do?. | Thank you very much in advance. Many of the spatial transformations in SPM need the images to be roughly in the correct stereotactic space. The <Check Reg> button allows you to see where the position of one image is relative to another. Check the positions of your images relative to the template images. If the orientation is within about 15 degrees, and the translations are within about 40mm then generally, things should work OK. If this is not the case, then you can reposition your images via the <Display> button. Good luck, -John %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%