Thanks for your ans. Actually, I started mysql already, set it automatically. However, when I try NET START MYSQL, it also appears error of "error: 'Access denied for user 'ODBC@localhost' (using password: NO)'"
If I put password on it, it announces "error: 'Access denied for user 'ODBC@localhost' (using password: YES)'"
But, when I type: MYSQLADMIN -u root -p reload, it runs well.
I don't know why? Oh gosh mysql.
I'm not sure maybe I run AMP on windows XP system, and I'm setting log-in the system automatically. Does it cause error?