Hi everyone,
We installed Freesurfer on our Mac system.
freesurfer-Darwin-leopard-i686-stable-pub-v4.5.0-full

Everything works except tksurfer.
When we try 

> tksurfer bert rh pial

Freesurfer returns

> surfer: current subjects dir: /Applications/freesurfer/subjects
> Bus error

How could we fix the problem?

Thanks a lot,
Nai