Hi SPM, I'm estimating a 1st level model and get this log with an error in the end. What should I do? Thanks Mx ----------------------------------------------------------------------- Running job #3 ----------------------------------------------------------------------- Running 'Model estimation' SPM8: spm_spm (v3151) 13:21:56 - 13/07/2009 ======================================================================= Initialising parameters : ...done Plane 1/46 , block 1/18 : ...read & mask data Plane 1/46 , block 2/18 : ...read & mask data Plane 1/46 , block 3/18 : estimation Plane 1/46 , block 4/18 : estimation Plane 1/46 , block 5/18 : estimation Plane 1/46 , block 6/18 : estimation Plane 1/46 , block 7/18 : ...read & mask data Plane 1/46 , block 8/18 : ...read & mask data Plane 1/46 , block 9/18 : ...read & mask data Plane 1/46 , block 10/18 : ...read & mask data Plane 1/46 , block 11/18 : ...read & mask data Plane 1/46 , block 12/18 : ...read & mask data Plane 1/46 , block 13/18 : ...read & mask data Plane 1/46 , block 14/18 : ...read & mask data Plane 1/46 , block 15/18 : ...read & mask data Plane 1/46 , block 16/18 : ...read & mask data Plane 1/46 , block 17/18 : ...read & mask data Plane 1/46 , block 18/18 : ...done Plane 2/46 , block 1/18 : ...read & mask data [.............] Plane 46/46 , block 18/18 : ...done Temporal non-sphericity (over voxels) : ...REML estimation ReML Block - 1 ReML Iteration : 1 ...4.830212e+01 ReML Iteration : 2 ...9.568543e-01 ReML Iteration : 3 ...2.014118e-02 ReML Block - 2 ReML Iteration : 1 ...1.580206e+01 ReML Iteration : 2 ...2.776070e+00 ReML Iteration : 3 ...4.974526e-01 ReML Iteration : 4 ...8.594087e-02 ReML Block - 3 ReML Iteration : 1 ...1.681558e+01 ReML Iteration : 2 ...2.444305e+00 ReML Iteration : 3 ...3.390639e-01 ReML Iteration : 4 ...4.627282e-02 SPM8: spm_spm (v3151) 13:35:45 - 13/07/2009 ======================================================================= Initialising parameters : ...done Output images : ...initialisingFailed 'Model estimation' Error using ==> spm_create_vol>create_vol at 52 "unknown" is an unrecognised datatype (NaN). In file "/autofs/space/labutokail_001/users/chaumon/matlab/spm8/spm_create_vol.m" (v1169), function "create_vol" at line 52. In file "/autofs/space/labutokail_001/users/chaumon/matlab/spm8/spm_create_vol.m" (v1169), function "spm_create_vol" at line 16. In file "/autofs/space/labutokail_001/users/chaumon/matlab/spm8/spm_spm.m" (v3151), function "spm_spm" at line 552. In file "/autofs/space/labutokail_001/users/chaumon/matlab/spm8/spm_spm.m" (v3151), function "spm_spm" at line 902. In file "/autofs/space/labutokail_001/users/chaumon/matlab/spm8/config/spm_run_fmri_est.m" (v2928), function "spm_run_fmri_est" at line 69. The following modules did not run: Failed: Model estimation