Hi Ali:

Q 1: I believe this has to do with your NVIDIA driver/ X windows. If you are using Linux, open a terminal and type 'glxgears'. If you see a window pop-up with 3 colored gears running, then your graphics driver is working within X windows. If you do not see this, then you need to goto the init level 3 in Linux and use yum update and update your NVIDIA driver.

This will solve the tkmedit problem.

Alan

On Tue, Aug 24, 2010 at 6:50 PM, Ali Radaideh <Ali.Radaideh@nottingham.ac.uk

wrote:

Dear FreeSurfer experts,

I have two question for you please,

First, I started recently to get the following message when I try to load the tkmedit

GLUT: Fatal Error in tkmedit.bin: OpenGL GLX extension not supported by display: IP address

And sometimes

tkmedit.bin: xcb_io.c:452: _XRead: Assertion `dpy->xcb->reply_data != 0' failed. aborted

Second, I have some images that have both intensity normalisation and Geometric distortion due to MS lesions. I followed the tutorial on how to fix these problems. My question is that, I don't want to re-run freesurfer twice (when I fix the intensity normalisation and one when I edit the white matter). Is there any command line I can use after saving changes to do both?.

Many thanks in advance

Ali

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