Can't verify MySQL DataSource

Hi There,

I've got problem with setting up a new DataSource on MySQL 4/5 driver. From the beginning:

1. I've installed ColdFusion 9 (Developer Edition), with JRun 4 option. I've done configuration of Apache (conf file, and execution file)

2. When i want to set up new DataSource with MySQL 4/5 driver, i'm getting error.

For Example:

     CF Data Source Name:      MyDataSource

     Database:                         MyBase

     Server:                              localhost

     Port:                                 3306

     Username:                        user

     Password:                         password

After that. I have information:

Connection verification failed for data source: MyDataSource

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:
Could not create connection to database server. Attempted reconnect 3
times. Giving up.

The root cause was that:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:
Could not create connection to database server. Attempted reconnect 3
times. Giving up.

The, in DataSource menu in Administration i see that base, but with this error under entry with name of DataSource.

What i'm doing wrong?

I have tried to install MangoBlog, but i can't do this with that issue. When i try, i get:

Could not find the ColdFusion component or interface CFIDE.scripts.MangoBlog_1.4.1.components.utilities.PreferencesFile.            

I think it's about that error which i've described.

Anyone got some ideas to this ?

Greets,

Rafal