inital cacti errors

When I first tried to get to http://.../cacti, it said cactiuser didn't have access to the database. So I did:
mgmt# mysql -u root -p -h myFQDN
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 40 to server version: 4.1.11

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

mysql> GRANT ALL ON cacti.* TO cactiuser IDENTIFIED BY 'cactiuser';
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye