Hi. I’m having the problem after an upgrade also. I didn’t use the new wp-config.php I kept my old one. I did notice the missing ?> at the end of the sample one. The weird thing is when I go to my admin area and I’m not logged in it says “Error: the username field is empty”. I didn’t try to login.. I just went to my wp-admin area to try to login. I have added the line to .htaccess and also to wp-config.php with no luck. Any suggestions what to try next?