When attempting to login the message
ERROR: The password you entered for the username admin is incorrect. Lost your password?
is displayed. The problem began after testing the change password feature of a plugin, however I have since disabled the plugin.
I am unable to login using the username and password of any of the users for the blog.
I have attempted using the emergency change password script and resetting it manually in the database as described at http://codex.wordpress.org/Resetting_Your_Password
Any help will be greatly appreciated