Kostas' information is now on my web page under Application Notes: http://www.ad1c.us/dx4win/index.htm#Appnote 73 - Jim AD1C -- Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863 USA +978-251-9933, <jjreisert at alum.mit.edu>, http://www.ad1c.us