刚使用mysql, 就老是碰到这个问题，真是郁闷， 终于找到原因..
C:\Program Files\MySQL\MySQL Server 5.0\bin>mysql
ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: N
O)


解决方法：
Step 1:

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysql -u root -p
Enter password: ******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 28 to server version: 5.0.24a-community-nt

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

Step 2:
C:\Program Files\MySQL\MySQL Server 5.0\bin>mysql
mysql>status

正常使用....