Updaterd to CentOS 4.5 and now MySQL won't start

My CentOS 4.4 updated to 4.5 and now the MySQL won’t start. When I hit the button I get a timeout error. THe files are all in the same place that the config has them, what did I miss in the update??

THanks,
Dan

I’ve reinstalled the mysql-server and still get a timeout running /etc/rc.d/init.d/mysqld start

I did note that the VMPro version is calling itself 3.47(Pro)