I manually installed 3.1.2 and now I can't get into wp-admin and the site is just a white page (I can get in to wp-login though). I have deactivated the plugins and changed the file names, so they shouldn't be a problem. I have checked wp-config.php and it looks good. I tried reverting to the Twenty-Ten theme and it still didn't work. I am completely out of ideas. Help!