Adobe recalled their just released update to Lightroom version 1.4 and recommends rolling back to version 1.3.1. Read our article on the update recall and get information on how to rollback as well as the downloads.
We will post another link when Adobe releases the next update. Keep watching or setup a feed (see the options on the right to setup a feed to this blog).
Don't forget to visit my photography web site where we sell museum quality black and white prints framed to last up to 175 years - Outdoor Images Fine Art.