Welcome to misc.consumers.house (and related groups).
Many of the questions that come up here, quite possibly including yours,
have been covered before. A collection of discussions on various topics
is available from the misc.consumers.house archive web page, located at
http://www.geocities.com/Heartland/7400
Topher Eliot Data General Unix Core Development
(919) 248-6371 eliot at dg-rtp.dg.com
Obviously, I speak for myself, not for DG.
Visit misc.consumers.house archive at http://www.geocities.com/Heartland/7400