utf8_unicode_ci collation doesn't work

[Uilton Dutra]

I've created a innodb mysql 4.1 database with utf8 charset and utf8_unicode_ci collation.

When a connect this database I set this variables:

character_set_client = utf8
character_set_connection = utf8
character_set_database = utf8
character_set_results = utf8
character_set_server = utf8
character_set_system = utf8
collation_connection = utf8_unicode_ci
collation_database = utf8_unicode_ci
collation_server = utf8_unicode_ci

The problem arrive when I try to execute a query on a field with accents. The collation is not working, for example:

Table: People

id | name
---------------
1 | Márcio
2 | Uílton

Query 1: select * from people where name like 'már%';
Return: Márcio

Query 2: select * from people where name like 'mar%';
Return: Nothing

What's happening? Any ideia?