Thomas, Most of those are a mystery to me too, except for punct. That variable in the dtlk/ltlk drivers is used to set the hardware synth's "punctuation level", which among other things, determines if a string of digits is pronounced digit by digit, or spoken as a single number: 123 could be "one two three" or "one hundred twenty three". The default of "7" can be changed to "15" to change this behavior. Chuck -- The Moon is Waning Gibbous (81% of Full) Home page at http://www.mhcable.com/~chuckh Speakfreely address 24.105.197.112:2074