The truth of the matter is . I spent hours trying to install WordPress. I checked the settings and re checked. In the end in desperation I checked the help files with me hosting Company. Problem solved they do not allow Third party installations. End of story. So members who say they have all the set up in wp-config.php correct. Then check with your hosting company.
The settings I used I Know would work . as I went to mysql and used the same info as I did in the wp-config.php file.
Hope this will help some of you who insist your settings are correct.