Please do not multi-post. If you send the same message to multiple news groups one at a time, it forces the rest of us to download your message multiple times. Also, it means if someone replies to one of your posts in one news group, the other places you posted the message will not see that reply! This is known as "multi-posting".
If you want to post the same thing to multiple news groups, include all of the news groups in a single post in the "Newsgroups" line, separated by commas, like so:
That way when someone replies to your post in one group, that reply is seen in all other news groups to which you sent the post. This is called "cross-posting" and is the proper way to do it.
-- Note: Please send all responses to the relevant news group. If you must contact me through e-mail, let me know when you send email to this address so that your email doesn't get eaten by my SPAM filter.