Can't connect to local MySQL server through socket '/opt/zimbra/db/mysql.sock

After install Zimbra 5.04 on my Debian etch I have this error:


logger Stopped
logmysql.server is not running
mailbox Stopped
mysql.server is not running

if I try to view if mysql is up, using 'mysql mysql' I have this error:

Can't connect to local MySQL server through socket '/opt/zimbra/db/mysql.sock

How can I solve the problem?