Thanks for your help, but there is no any error message given by program,just show the word "Terminated!" on the screen(I used the latest version of afni)!
You gave me a very important information about the dataset size limitation,thank you again! my dataset size is much bigger than 2GB because of high resolution(128*128) in data acquisition by 3T scanner, I want to do the average results among 13 subjects, how can I do that? Could you have any suggestion? Thank you!