I had the same problem and solved it by making a small change to the database.
The problem I had is that I changed the WordPress address, and blog address (incorrectly)
After that, the automatic re-direct are getting screwed up, this makes it imposible even to log in to the admin area and change things back.
To solve this, log into you wordpress database. Look for the table wp_options. For the row that contains option_name=”siteurl”, change the option_value back to default.
(This looks like a defect in this version to me)
