afni.nimh.nih.gov

Which AFNI binary distribution are you are running (i.e. linux_xorg7, linux_gcc32, afni_src compiled in house)?

I believe you said you are using the same binaries on both machines. Your uname's show different gcc major versions on the machines, so maybe a binary incompatibility is a factor.

Have you tried the linux_gcc32 binaries on the problem machine?