MySQL 5.5.8 uninstall MAC OS 10.6.5 (no replies)

MySQL 5.5.8 uninstall MAC OS 10.6.5,restart computer is message “/Library/StartupItems/MySQLCOM” has not been started because it does not have the proper security settings. i set
sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /usr/local/mysql/support-files/mysql.server

Locate the configuration defining the basedir and set the following :
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data

bug i click the mysql preference start mysql server isn't start

and i sudo chown -R root:wheel /Library/StartupItems/MySQLCOM and restart again ,not warning message but mysql server not start ,why?