 
> 
> Does any one know if there is version of unix for a PC that will run Grass?
> 

Yes, there are several, but the one I am most interested in is Linux.
It is free, with source code, and available via ftp from tsx-11.mit.edu.
It is discussed in the newsgroup comp.os.linux.  It is a hacker's dream
and a beginner's nightmare, because it is still officially "beta" and is
continually being updated and patched. But it is quite stable and quite
a complete UNIX implementation.  A number of people have managed to
get grass running on it.  

Tim 

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  Tim Martin                     *
  Spatial Information Systems    * These opinions are my own:
  University of Alberta          *    My employer has none!
  martin@ulysses.sis.ualberta.ca *
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