Hi Nick,
Thanks for the solution. For the first problem it took me quite a while
to update the Nvidia driver. It finally installed after i updated my
kernel to 2.6.17-1.2174_FC5. It may have installed just by updating xorg
as well. 
For the second issue, i do have a x86_64 bit system and downloading
tksurferx86_64 from the ftp site that u sent me worked.

however there is a third issue :)
i ve FSL 3.3 installed. Ive configured FSL and freesurfer in .cshrc. i
moved fsl 3.2 from within the freesurfer directory and created a link
pointing to FSL3.3 directory. But now FSL 3.3 doesnt run. it gives the
following error:
---------------------------------------------------------------------
[EMAIL PROTECTED] ~]$ fsl
Error in startup script: couldn't load file
"/home/vish/apps/freesurfer/lib/tclt
ktixblt/lib/libtix8.1.8.4.so": 
/home/vish/apps/freesurfer/lib/tcltktixblt/lib/li btix8.1.8.4.so: wrong ELF 
class: ELFCLASS64
    while executing
"load /home/vish/apps/freesurfer/lib/tcltktixblt/lib/libtix8.1.8.4.so
Tix"
    ("package ifneeded" script)
    invoked from within
"package require Tix"
    invoked from within
"if { [ info exists env(TCLTKSHELL) ] &&  $env(TCLTKSHELL) == "wish" } {
    package require Tk
    package require Tix
    tix configure -scheme TixGr..."
    (file "/home/vish/apps/fsl3.3/tcl/fslstart.tcl" line 3)
    invoked from within
"source [ file dirname [ info script ] ]/fslstart.tcl"
    (file "/home/vish/apps/fsl3.3/tcl/fsl.tcl" line 71)
    invoked from within
"source ${FSLDIR}/tcl/${origname}.tcl"
    (file "/home/vish/apps/fsl3.3/bin/fsl" line 21)
---------------------------------------------------------------------
My .cshrc file reads:

setenv FSLDIR /home/vish/apps/fsl3.3
source ${FSLDIR}/etc/fslconf/fsl.csh
setenv PATH ${FSLDIR}/bin:${PATH}
set path = ($path /home/vish/bin ) 
setenv FREESURFER_HOME /home/vish/apps/freesurfer
source $FREESURFER_HOME/SetUpFreeSurfer.csh
-------------------------------------------------------------------
Ofcourse , removing the freesurfer config from .cshrc,i can run fsl
again. also i can configure freesurfer in another shell to run both
FS/FSL. but how can i run both in the same shell? 
also another concern is since the freesurfer using FSL3.2 and my Feat
directories are a result of FSL3.3 ...would i still be able to overlay
functional data on the FS produced surface and subcortical segmented
images?
Thanks!

Cheers,
Vish

Graduate Student
Medical Physics
VCU, Richmond






On Fri, 2006-08-11 at 17:43 -0400, Nick Schmansky wrote:
> Vish,
> 
> I think there might be two problems here.  The first, the GLX error, is
> likely due to the video driver not supporting GLX (aka OpenGL X-Windows
> extensions).  Does this error appear when running directly from the
> machine, or is this a remote connection?
> 
> The 'wrong ELF class: ELFCLASS64' error would occur is the wrong machine
> architecture is used.  Are you certain your machine is 64bits?  To
> check, you should type this:
> 
>   uname -m
> 
> and see:
> 
>   x86_64
> 
> On the distribution site:
> 
>   ftp://surfer.nmr.mgh.harvard.edu/pub/dist
> 
> the 32bit FC5 tksurfer stuff is:
> 
>   tksurfer_fc5.gz
> 
> and the 64bit FC5 stuff is:
> 
>   tksurfer_fc5_x86_64.gz
> 
> Nick
> 
> On Fri, 2006-08-11 at 15:11 -0400, Vishwadeep Ahluwalia wrote:
> > Hi Freesurfers,
> > I just installed freesurfer-Linux-centos4_x86_64-stable-pub-v3.0.3 on
> > FC5 linux,x86_64 platform. I'm getting the following errors for tkmedit
> > and tksurfer respectively:
> > 
> > tkmedit bert orig.mgz
> > freeglut (tkmedit): Unable to create direct context rendering for window
> > 'Medit: 'This may hurt performance.
> > X Error of failed request:  GLXBadContext
> >   Major opcode of failed request:  143 (GLX)
> >   Minor opcode of failed request:  5 (X_GLXMakeCurrent)
> >   Serial number of failed request:  29
> >   Current serial number in output stream:  29
> > 
> > tksurfer bert rh pial
> > tksurfer: error while loading shared libraries: libtix8.1.8.4.so: wrong
> > ELF class: ELFCLASS64
> > 
> > Please advise!
> > regards,
> > Vish
> > 
> > PS: i'm using tksurfer-fc5 as given in the online instructions.
> > _______________________________________________
> > Freesurfer mailing list
> > Freesurfer@nmr.mgh.harvard.edu
> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
> > 
> > 
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