#1045 error with phpmyadmin

Hi !

I've installed Rubystack on Windows 7.
In the 'report.txt' I have :

MySQL was installed with the following configuration:

Binaries location: C:\\Ruby\\mysql\\bin
Port: 3306
Root password: lefferuby92

And :

phpMyAdmin was installed with the following configuration:
Username: administrator
Password:

But when I try to connect to phpmyadmin with the login 'root' and password 'lefferuby92', it says me 'forbidden connection to mysql server' (french traduction). If I try with the login 'administrator' and password 'lefferuby92', it works but the table 'acturevue_development' created with 'rake db:create' doesn't appear.

Where is the problem ?

Thanks in advance.