> users should -never- be -required- to get trained before the > instrument will work. "Never" is a really big word, even without emphasis. I really hope that you mean musical instruments, not surgical instrumets as well. ;) Phil Mendelsohn -- Dept. of Mathematics, 342 Machray Hall U. of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 Office: 446 Machray Hall, 204-474-6470 http://www.rephil.org/ phil at rephil dot org