Dear DCM experts While loading VOIs for DCM we are getting the error message below. However, the error is not consistent per VOI file, i.e. a given VOI.mat file can work fine in the context of specific VOIs, but generate the error message in the context of other VOIs. We can't find any differences among the VOI files. We'd appreciate any help. Tali Bitan Haifa University ================================================================ Error in ==> spm_dcm_ui at 126 p = load(P(i,:),'xY','-mat'); ??? Error using ==> spm_dcm_ui Error using ==> load Unable to read file /data/NU/301/Results/audrhyme_4VOI/VOI_301_A1_L_COR_1.mat : No such file or directory. ??? Error using ==> waitfor Error while evaluating uicontrol Callback ??? Error using ==> load Unable to read file /data/NU/301/Results/audrhyme_4VOI/VOI_301_MeFG_BIG_1.mat : No such file or directory.