Dear all, I am sure that the answer to this is simple. ... I have done a group inversion on a set of 10 subjects' MEG data. Then I have produced the images to use in a standard 2nd level analysis. This all seems fine, and I have 'estimated' the model. However, when I get to checking out the results of a particular contrast I get this message. ??? Error using ==> spm at 481 Unknown Modality. Error in ==> spm_results_ui at 632 if strcmp(spm('CheckModality'),'FMRI') Error in ==> spm_results_ui at 539 spm_results_ui('DrawButts',hReg,DIM,Finter,WS,FS); Error in ==> spm_results_ui at 333 hReg = spm_results_ui('SetupGUI',M,DIM,xSPM,Finter); ??? Error while evaluating uicontrol Callback I get that it is a problem with knowing the modality, but I thought that it did know!? Any help would be much appreciated. Thanks, Duncan