I'm getting a server error on going to admin.php to do an install. The error details read '[the website] may be down for maintenance or configured incorrectly'. PHP is running OK. I've used the EE installation wizard to check the database settings. I've tried versions 2.10.2, 2.10.1, 2.9.2. Checked the ownership prefs, tried an installation without renaming the system folder. There is no htaccess file on the server. I've installed EE many times with the same host. I can't see what's going wrong.