Rick,
We are running Linux RedHat.
Here is the output of the commands:
[julia@entorhinal ~]$ which afni
/usr/local/afni/bin/afni
[julia@entorhinal ~]$ ls -s /home/julia/abin/plug_3Ddump_V2.so
40 /home/julia/abin/plug_3Ddump_V2.so
[julia@entorhinal ~]$ file /home/julia/abin/plug_3Ddump_V2.so
/home/julia/abin/plug_3Ddump_V2.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), not stri pped
[julia@entorhinal ~]$ uname -a
Linux entorhinal.ucsd.edu 2.6.9-5.0.5.ELsmp #1 SMP Fri Apr 8 14:29:37 EDT 2005 x86_64 x86_64 x86_64 GNU/L inux
[julia@entorhinal ~]$ afni -ver
Version AFNI_2005_03_29_1433
[[Precompiled binary linux_gcc33_64: May 6 2005]]
[julia@entorhinal ~]$