Error when saving draft

Hi all. Not sure this is the correct forum for this post, but I am running 2.0. When I save a new post as a draft, I get the following error:
Not Found The requested URL /wp-admin/http://www.newhousenews.com/archive/lileks122805.html was not found on this server.

Of course the URL is whatever URL was in the post I saved as a draft. As an FYI, the draft is saved. Can anyone give me a tip on how to fix this error?