The Newsgroup List

Each server has a list of available newsgroups. Gravity should automatically retrieve the list when you first set up a server, or during a new install.

Check and Retrieve New Newsgroups
  NEWSGROUP - Get New Groups
Retrieve a list of new newsgroups added to the news server since Gravity last stored the newsgroup list, if any. If there are new newsgroups, the "Subscribe to Newsgroups" dialog box will appear with the new groups.
Option: You can configure Gravity to check for new groups each time it connects to the news server (see Server - Properties - Group Tab).

Re-Retrieve the Entire Newsgroups List
NEWSGROUP - Reread All Groups
Retrieve the entire list of newsgroups again. This replaces your current list.