[Freesurfer] Blocked Design

Hello,

We are attempting to run an analysis using selxavg3-sess but keep getting an error.

We are using:

freesurfer v5

Our subjects directory: /cluster/manoach/milton/subjects

Command that was run:

selxavg3-sess -analysis mandylh2 -fwhm -s PAMST06

Output that was given:

Creating Design Matrix ... creation time = 0.006 sec DoMCFit = 1 ntptot = 250, nX = 5, DOF = 245 Saving X matrix to /autofs/cluster/manoach/milton/subjects/PAMST06/bold/mandylh2/Xtmp.mat ??? Error using ==> svd Input to SVD must not contain NaN or Inf.

Error in ==> cond at 40 s = svd(A);

Error in ==> fast_selxavg3 at 256 XCond = cond(XtX);

...

---

ERROR: fast_selxavg3() failed\n

Do you know what might cause this?

Thanks! --Mandy