Dear List, I am having problems using the render option with SPM99 under Matlab 6 and Mandrake Linux 7.2 -- the program goes through "Formatting renderings" just fine, but balks at making the first picture. The following are the error messages that are output: SPM99: spm_render (v2.16) 14:10:23 - 06/06/2001 ======================================================================= SPM99: spm_getSPM (v2.35) 14:10:24 - 06/06/2001 ---------------------------------------------------------------- SPM computation : ...initialising ...computing ...done contrast structure : ...saved to xCon.mat ??? Error while evaluating uicontrol Callback. ??? Error using ==> sparse Index into matrix is not an integer. Error in ==> /home/spm99/spm_render.m On line 157 ==> X0 = full(sparse(xyz(1,:), xyz(2,:), t0, d2(1), d2(2))); Error in ==> /home/spm99/spm.m On line 1182 ==> evalin('base',CBs{v-1}) Thanks in advance! John Woodard Chicago Medical School