Dear John, Thanks for the help with SPM on MATLAB 6, here is a summary for the SPM archives: SPM99 runs on MATLAB 6.1.0.450 (R12.1) on UNIX Solaris 2 with the updates (some for MATLAB 6.0) listed below and it works fine (as far as I can see) with only tiny incompatibilities: Warnings: The reference to 'isieee' in spm_platform is obsolete - MATLAB only runs on IEEE platforms. Warnings from: /opt/spm99_matlab6/spm_input_ui.m Line: 790 Column: 71 There needs to be an extra comma or a space before the str and before the Defstr at line 1302. updates installed: spm.m spm_DesRep.m spm_P.m spm_P_Bonf.m spm_P_RF.m spm_bch_bchmat.m spm_coreg_ui.m spm_coregister.m spm_dcm_display.m spm_filter.m spm_get.m spm_graph.m spm_grid.m spm_help.m spm_hwrite.m spm_mask.m spm_mip.m spm_mip_ui.m spm_orthviews.m spm_platform.m spm_read_vols.m spm_regions.m spm_render.m spm_segment.m spm_slice_timing.m spm_sn3d.m spm_transverse.m spm_vol_ecat7.m spm_vol_minc.m spm_write_plane.m _________________________________ R P Maguire Tel: +31 50 361 1009 A.Z.G. Neurology V4.121 Fax: +31 50 361 1707 NL-9700 RB Groningen Email: [log in to unmask] The Netherlands