"Bob Gardner" wrote in message
...
I did not realize that if I replied to a cross-posted message my reply
would
also be cross-posted.




Its just that nobody looks up at the headers, when replying.

Most composers enter the newsgroups automatically and you have to remember
to look up there and remove the ones you don't want.

If your composer does not show the headers, there should be an option
somewhere (like under the "view" menu item) which allows you to default so
that all headers are always in view.