You can customize the article list in the Newsgroup Window to display only the articles you have not read, articles that are cached, or articles that are locked. An article is cached after you read it, when you lock it, or when you tag it.
To display only unread messages
In the Newsgroup window, click Options, Show Only Unread Messages.
To display only cached messages
In the Newsgroup window, click Options, Show Only Cached Messages.
To display only locked messages
In the Newsgroup window, click Options, Show Locked Messages.
Note
For information about opening newsgroups, see "Opening newsgroups."