Dear FreeSurfer experts,

I just installed FreeSurfer in a virtual machine (Ubuntu) and ran recon-all. I kept getting the following error message. Could you advise?

Thanks in advance,
Yunjo

Here's the error message:

0597: dt=0.056000, rms=0.417 (0.032%), neg=0, invalid=766
0598: dt=0.028000, rms=0.417 (-0.000%), neg=0, invalid=766
gcamFindOptimalTimeStep: Complete in 22111.002 ms
0599: dt=0.000000, rms=0.417 (0.000%), neg=0, invalid=766
GCAMwrite(transforms/talairach.m3z): gzip encountered error.
writing output transformation to transforms/talairach.m3z...
mri_ca_register: GCAMwrite(transforms/talairach.m3z) failed
ERROR: mri_ca_register with non-zero status 252
but continuing despite the error
#--------------------------------------
#@# CA Reg Inv Tue Apr 26 16:21:09 EDT 2011
/usr/local/freesurfer/subjects/YC7178/mri

 mri_ca_register -invert-and-save transforms/talairach.m3z

Loading, Inverting, Saving, Exiting ...
Reading transforms/talairach.m3z
ERROR: cannot find or read transforms/talairach.m3z
ERROR: mri_ca_register with non-zero status 0
Linux VMBronzeWing 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686 GNU/Linux

recon-all -s YC7178 exited with ERRORS at Tue Apr 26 16:21:14 EDT 2011