I have done all that you can check with my settings.inc.php scripts as shown. On my local xamp server on my PC, it works perfectly. But on the hosted account for my domain, it give "The database selection cannot be made" error. I cant even access my Back Office online. Everything as shown below is the same as in my hosting account except for this define('__PS_BASE_URI__', '/'); which is define('__PS_BASE_URI__', '/prestashop/prestashop/'); which is the directory path in my local machine.
I replicated everything the way is was on my local machine on the hosting accounts server also.
<?php
define('__PS_BASE_URI__', '/');
define('_MEDIA_SERVER_1_', '');
define('_MEDIA_SERVER_2_', '');
define('_MEDIA_SERVER_3_', '');
define('_PS_CACHING_SYSTEM_', 'MCached');
define('_PS_CACHE_ENABLED_', '0');
define('_THEME_NAME_', 'Euro3310');
define('_DB_NAME_', 'eberach21');
define('_MYSQL_ENGINE_', 'InnoDB');
define('_DB_SERVER_', 'localhost');
define('_DB_USER_', 'eberach21_273');
define('_DB_PREFIX_', 'ps_');
define('_DB_PASSWD_', 'eke@u21B40');
define('_DB_TYPE_', 'MySQL');
define('_COOKIE_KEY_', 'xHtfBpjThtTzfpttx1FcezBgvrTaz7jgCPr9H6F70xf4UATYZUTwE5ge');
define('_COOKIE_IV_', 'hqS4C3DT');
define('_PS_CREATION_DATE_', '2012-08-15');
define('_RIJNDAEL_KEY_', 'OoNrcUbPLeOa3jJenFbBtUtmYeKe1vFY');
define('_RIJNDAEL_IV_', 'WHYarePtzBQIdR4fLxU0lA==');
define('_PS_VERSION_', '1.4.8.2');