Installation problem

[Bluelane]

I cannot install Plesk 7.5 Reloaded on my Debian server. Here is the lines while install :

Trying to start MySQL server... done
Trying to establish test connection...
ERROR while trying to establish test connection
Check the error reason(see log file: /tmp/psa_7.5.4_Debian_3.1_build75050824.12_installing.log), fix and try again

Aborting...

dpkg: error processing /var/cache/apt/archives/psa_7.5.4-debian3.1.build75050824.12_i386.deb (--unpack):
subprocess pre-installation script returned error exit status 1
Errors were encountered while processing:
/var/cache/apt/archives/psa_7.5.4-debian3.1.build75050824.12_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Atteint http://security.debian.org stable/updates/main Packages
Atteint http://security.debian.org stable/updates/main Release
Atteint ftp://ftp.fr.debian.org stable/main Packages
Atteint ftp://ftp.fr.debian.org stable/main Release
Atteint ftp://ftp.fr.debian.org stable/main Sources
Atteint ftp://ftp.fr.debian.org stable/main Release
Lecture des listes de paquets...
Press <ENTER> to continue...


Here is the "/tmp/psa_7.5.4_Debian_3.1_build75050824.12_installing.log" log file :

Trying to define super-server internet daemon type... inetd
Trying to check if xinetd daemon is running... done


START LOGGING: Thu Oct 20 18:03:46 CEST 2005
Trying to start MySQL server... Starting MySQL database server: mysqld...already running.
done
Trying to establish test connection... ERROR 1045: Access denied for user: 'admin@localhost' (Using password: YES)
ERROR 1045: Access denied for user: 'root@localhost' (Using password: NO)
ERROR 1045: Access denied for user: 'admin@localhost' (Using password: YES)
ERROR 1045: Access denied for user: 'root@localhost' (Using password: NO)
ERROR 1045: Access denied for user: 'admin@localhost' (Using password: YES)
ERROR 1045: Access denied for user: 'root@localhost' (Using password: NO)
ERROR 1045: Access denied for user: 'admin@localhost' (Using password: YES)
ERROR 1045: Access denied for user: 'root@localhost' (Using password: NO)

ERROR while trying to establish test connection

Aborting...