If you go into the WinXP device manager and select one of the ports, you might be able to change its default port number. That is how I've set up my ports as COM3 and COM4. 73 - Jim AD1C ===== Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863 USA +978-251-9933, <jjreisert@alum.mit.edu>, http://www.ad1c.com PGP Fingerprint: D8E2 3D78 339F A7F1 8C13 1193 B5D1 4FB6 79D1 70DC