Telamon, I'm curious, what news client do you use? I've not figured out
how
to configure Outlook Express to filter responses to those in my killfile;
perhaps it can't be done.

You need to use a dedicated news reader. I don't know how to use Outlook
Express for reading news. I just use it for mail. The Mac version of
Outlook is called Entourage on the Mac.

If I turn on the header information it shows the line below on one of my
posts.

User-Agent: MT-NewsWatcher/3.4 (PPC Mac OS X)

On your post it's

X-Newsreader: Microsoft Outlook Express 6.00.2900.2180

Well I use a Mac as you can tell from the header information and my news
reader is MT-NewsWatcher.

There has to be many free news readers for PC's. Don't use a mail
program for Usenet.

Thanks, I'll check it out. Probably should have just googled it first, but I
was feeling unusually lazy. I actually just picked up a Mac this past
weekend; this is my first experience with that os.

-Brian