I'm starting to get a better handle on this. I don't think I'm missing any files.
But I'm getting /fsl/etc/fslconf/fsl.csh: I/O error. Also "sh: /fsl/bin/flirt: cannot execute" errors or
/fsl/bin/flirt: I/O error.
Something is seriously wrong, but I don't know if it's an installation problem or a general unix
problem. Someone suggested that Tcl might be corrupted?
Neuroscience is next week, so I guess I should have expected Murphy's Law to strike me down!