> > > fi yuo cna raed tihs, yuo hvae a sgtrane mnid too Cna yuo raed tihs? > Olny 55 plepoe can. Reminds me of some data sheets. :) Actually, I'd bet this has been used for encryption. They also have been known to break up the text into 5 letter groups, to obscure word pattern attacks. It's not all PGP and such anymore either. Google for the term "numbers stations" and you'll find where you can listen in to secret messages being broadcast worldwide. -- > Feel the power of the dark side! Atmel AVR -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist