SPM experts, I hope you can help me with a problem I am having with segmentation. I am attempting to segment a series of EPI images from one subject. I choose: segment 1 subject select the series of EPI images (84 images total) are they normalized..yes no inhomogeneity correction The program runs and segments the first image and then stops. It display the segmented images in the graphic window and states "done" in the plot window. I have tried selecting only 2 images and get the same results. Furthermore, I downloaded the most recent spm_segment.m file from you site but this did not fix the problem. DO you have any insight to this problem. I would really appreciate your help or I will have to segment each image separately. As you can imagine, this would be very time consuming as I plan to do this for many subjects. Thanks in advance for you help. Paul Laurienti