Prosper on OSX for a newbie

Hi,

I'm new to prosper and am having trouble getting it to work. I am 
running Panther on a Mac. I use TexShop (version 1.35e). I downloaded 
prosper from sourceforge and put the prosper folder in my home 
directory under

Library/texmf/tex/latex/

Then I opened TexShop and tried to run the examples from 
prosper/doc/doc-examples. They all fail with:

! Undefined control sequence.
<recently read> \c@lor@to@ps

Does anyone have any idea what is causing this error?

Thanks.

Peter

--
  Peter Cornillon
    Graduate School of Oceanography     -  Telephone: (401) 874-6283
       University of Rhode Island                 -               Fax: 
(401) 874-6728
         Narragansett, RI 02882                    -           E-mail: 
[email protected]



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