Dear FreeSurfers,

I am having a problem viewing  in tksurfer: I can only see a sliver of the brain. This sliver will rotate and do everything that tksurfer is supposed to do, but I can’t view any more of the brain than a tiny piece of the occipital lobe. I have tried this with several different files, and had the same issue for each of them. Tkmedit, on the other hand, works fine.

 I am using FreeSurfer stable release v4.0.1 on Windows Vista using a virtual machine.

FREESURFER_HOME: /usr/local/freesurfer

Build stamp: freesurfer-Linux-centos4-stable-pub-v4.0.1

RedHat release: CentOS release 5 (Final)

Kernel info: Linux 2.6.18-8.1.15.el5 i686

I am working through the on-line tutorial and followed the directions to set my environment to /buckner_data/tutorial_subjs I also set SUBJECTS_DIR to $TUTORIAL_DATA . I am working in $SUBJECTS_DIR. The “which” command gives me /usr/local/freesurfer/bin/tksurfer

I ran the command “tksurfer good_output lh inflated”.  The following is the resulting message…

surfer: current subjects dir: /usr/local/freesurfer/subjects/freesurfer_tutorial/buckner_data/tutorial_subjs

surfer: not in "scripts" dir ==> using cwd for session root

surfer: session root data dir ($session) set to:

surfer:     /usr/local/freesurfer/subjects/freesurfer_tutorial/buckner_data/tutorial_subjs

surfer: Reading header info from /usr/local/freesurfer/subjects/freesurfer_tutorial/buckner_data/tutorial_subjs/good_output/mri/T1.mgz

surfer: vertices=125352, faces=250700

Loading /usr/local/freesurfer/surface_labels.txt

surfer: ### redraw failed: no gl window open

surfer: single buffered window

surfer: using interface /usr/local/freesurfer/lib/tcl/tksurfer.tcl

Reading /usr/local/freesurfer/lib/tcl/tkm_common.tcl

Reading /usr/local/freesurfer/lib/tcl/tkm_wrappers.tcl

Reading /usr/local/freesurfer/lib/tcl/fsgdfPlot.tcl

Reading /usr/local/freesurfer/lib/tcl/tkUtils.tcl

Successfully parsed tksurfer.tcl

reading white matter vertex locations...

In the email archives I have seen a response that mentioned the NVidia graphics card. I checked and my machine does have an NVidia graphics card.

Thanks in advance for the help!

Sarah

Sarah Andersen

Research Specialist

Dept. of Neurology

Dept. of Speech, Language, and Hearing Sciences

(520) 621-9878

sander@email.arizona.edu