Hi, Please be aware that the default behaviour of the beamformer has changed as of 01/06/2008. An artifact has been identified which has now been compensated for. As such, if you have run any beamforming studies prior to 01/06/2008, it is vitally important that you familiarise yourself with the issue of FilterPadding found at: https://www.ynic.york.ac.uk/doc/FilterPadding Any questions should be directed to analysis-support(a)ynic.york.ac.uk Thanks, Mark (on behalf of the YNiC Staff) -- Mark Hymers York Neuroimaging Centre