Install Scripts function fails when trying to access mysql

For example, when trying to install WordPress MU in virtual server 'atanda.com', after the download completes successfully there's the following error message:
"WordPress MU database configuration failed" and the script stops. The database does get created.

When trying to install the same script in virtual server 'annkeelerevans.org', the error after the download completes is:
"Database connection failed : DBI connect failed : Access denied for user 'annkeelerevans'@'localhost' (using password: YES) 982." Again, the database does get created.

As I can download/upload packages manually, it's not 'Critical', but it is a major hassle and as work is heating up, the lack of simple installs is painful.

You have the necessary log-in info, I trust, from the last bug (#4441).

Much thanks for your help.

Status: 
Closed (fixed)