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I am using Adobe Acrobat 5. Which is the one that works - I would be glad to know?

Should be fine. What did you use for unzipping the file that you downloaded from the web page? Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174