I recently updated my blogs, and my clients' blogs to 2.9.1. There are 3 different servers, total, that are involved with this, so it's not server specific.
When going to http://myblog.com/wp-admin, the address bar shows:
I can login on that page, but I'm wondering why it's doing the redirect. I've never noticed it doing this before.
I deleted the wp-login.php file and replaced it with a new copy. The issue remains. Any clues what's going on?