.newsrc-dribble autosave

[akb427]

I've recently switched from xemacs to gnu emacs.

In gnus, I am now sometimes getting the message "Buffer .newsrc-dribble has 
shrunk a lot; auto save disabled in that buffer until next real save"

Isn't the whole point of the dribble file that it should get autosaved 
frequently
in case of a crash? What should I do about this?

Emacs is 23.2, Gnus is 5.13.