Hello,

I am working in freesurfer-Linux-centos4_x86_64-stable-v4.0.5-20081003.

The issue I am having started several days ago when I was trying to create overlap of thresholded stats maps using mri_binarize and mri_concat (from sig.mgh files). When I was attempting to load the concatenated file I was getting an error "surfer: ### redraw failed: no gl window open" and in the tk window I am getting just an average recon without any overlay map. Also, now I am unable to load any of the GLMs I have ran previously.

Going by the previous posts as well as http://surfer.nmr.mgh.harvard.edu/fswiki/TksurferDisplayProblems, I have tried the following: - setenv LD_LIBRARY_PATH /usr/lib64/GLoverride:/usr/lib/GLoverride prior to running freesurfer - NVidia driver update - setenv doublebufferflag 1 - I have also checked my xorg.conf file (attached) Depth is set to 24.

If you could point me in any other direction to fix/undo this issue I would greatly appreciate it.

Thank you in advance, Juli