[Freesurfer] Numerical result out of range error

I have a MPRAGE scan, with slight atrophy on right side of brain. Recon-all is crashing (see error below). Can anyone help me with this, so I can get a reasonably parcellated brain?

*CORRECTING DEFECT 6 (vertices=151, convex hull=90) After retessellation of defect 6, euler #=-52 (54998,159712,104662) : difference with theory (-57) = -5

CORRECTING DEFECT 7 (vertices=27939, convex hull=5437) normal vector of length zero at vertex 60965 with 0 faces vertex 60965 has 0 face Numerical result out of range Linux compute-0-4.local 2.6.18-194.17.4.el5 #1 SMP Mon Oct 25 15:50:53 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

recon-all -s . exited with ERRORS at Sat Sep 1 02:01:53 EDT 2012*

thanks