I installed a copy of phpbb to my host.I put in all the details. and I chose my admin username/password
Yet when I try to login, it says
"you have specified an inactive or incorrect username or password"
when I havent!
I suspect that your problem lies with CasE seNsItiVitY. Both your user name and your password must be typed exactly as your did when you were setting up PHPBB. If you're still having problems there may have been a typo.
If you're familiar with phpmyadmin you can log into the database and access the user/pass info. I forget exactly where it is, but it's logically orgainzed. If not you may want to just delete the install and do it all over again.
--Matttailart.googlies.net - personal website