Dear SPMers, I need to extract a VOI time-series . But after I input the VOI radius, I get a error "can't open image file". ----- ??? Cant open image file. Error in ==> C:\MATLAB6p5\toolbox\spm2\spm_sample_vol.dll Error in ==> C:\MATLAB6p5\toolbox\spm2\spm_get_data.m On line 30 ==> Y(i,:) = spm_sample_vol(V(i),XYZ(1,:),XYZ(2,:),XYZ(3,:),0); Error in ==> C:\MATLAB6p5\toolbox\spm2\spm_regions.m On line 162 ==> y = spm_get_data(SPM.xY.VY,xSPM.XYZ(:,Q)); ??? Error while evaluating uicontrol Callback. ----- I appares that some images are lost. However, all the images are in the work dictionary. PS: all the image files were copied from anther computer. Thank you for your time and any suggestion will be appreciated. -- Qiyuan WU