I've been in a different support forum with no success, really need to fix this! I have had my blog for a couple of months, original install went fine. Today I upgraded to 2.7, after backing up what I thought were needed files. My blog disappeared, my user name no longer worked, so I created a new user name to access the forum for help. I gave up and went through my web host and did an uninstall and reinstall twice, with new database. Still the same problems, new user name didn't work to get to dashboard. I uploaded my backup config file, and finally got an admin password (didn't need one before). I have blog up and running again, of course have lost content. But neither new or old user name and password work for the login page, so I can't get to my profile or my askinet code, etc.