Applied Cryptography references a 2nd edition of The Puzzle Palace by Bamford and Madsen, 1995, but I can't seem to find it in any of the bookstores in Austin. Has it been published? Thanks, - Bill ...... "Do, or do not. There is no try." - Yoda ..... William I. MacGregor Austin Product Center - Research phone (1-512) 331-3733 P.O. Box 200015 fax (1-512) 331-3760 Austin, TX 78720