(I'm using 2.8.5, though the selector for this post doesn't list that as an option.)
My local development copy of wordpress no longer recognizes known users in its database. Wp-login returns "Invalid Username" for all users.
This is what I have checked.
wp-config: database name, mysql username, mysql pass, dbase location, dbtable prefix's are correct.
phpmyadmin: all appropriate tables exist with user and post information. No overhead in any table, though I ran repairs anyway.
wp-login: tried a fresh copy of wp-login. No change in result.
For me the user and post information isn't important, for this is a development copy. What I am trying to preserve is my configuration.
Is there anything else I can check?
Thanks a lot everybody.