the installer couldn't start mysql during the process

in
Code:
tail -f /opt/zimbra/log/mysql_error.log
i see

Code:
111124 12:25:04 [ERROR] Can't open shared library '/opt/zimbra/mysql-standard-5.1.58-pc-linux-gnu-i686-glibc23/lib/mysql/plugin/ha_innodb_plugin.so' (errno: 22 undefined symbol: compressBound)
111124 12:25:04 [ERROR] Couldn't load plugin named 'innodb' with soname 'ha_innodb_plugin.so'.
/opt/zimbra/mysql/libexec/mysqld: Table 'mysql.plugin' doesn't exist
111124 12:25:04 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
111124 12:25:04 [ERROR] /opt/zimbra/mysql/libexec/mysqld: unknown variable 'innodb_buffer_pool_size=478008114'
111124 12:25:04 [ERROR] Aborting
I can't find anything anywhere ;(

Can you help me ?

thank's