Moving WordPress to new server

Soo. my problem is the following:

i recently decided to buy a top level domain (which happens to be timme.cc) at domainfactory.

Now i wanted to transfer my existing wordpress blog to the new webspace.
As i was instructed i downloaded the whole site via ftp, saved it, logged in to the admin menu and changed the website address in the general options tab, then saved the whole database, uploaded the database on my new host and changed the wp-config.php as follows:

/** The name of the database for WordPress */
define('DB_NAME', 'db306XXX');

/** MySQL database username */
define('DB_USER', 'db306XXX');

/** MySQL database password */
define('DB_PASSWORD', 'my password');

/** MySQL hostname */
define('DB_HOST', 'mysql.news.timme.cc');

news is the subdomain where ive placed my blog.

then i uploaded everything to news.timme.cc but somehow (i thought i had done everything right) it does not work:
Error establishing a database connection

Has someone got any idea whot might have gone wrong?

Thank you in advance,
timme