collations and charsets

[Venca]

Hi,
I have an interesting problem, I moved to Apache 2.0.52, PHP 5.02 and MySQL 4.1.17, of course :)

I have this query

SELECT COUNT(id) FROM users WHERE username = 'admin' AND password = SHA1('admin')

it runs on Query Browser correctly, but in a php script I get this error

Illegal mix of collations (cp1250_czech_cs,IMPLICIT) and (latin1_swedish_ci,COERCIBLE) for operation '='

These are variables on my MySQL server

character_set_client utf8
character_set_connection cp1250
character_set_database cp1250
character_set_results utf8
character_set_server cp1250
character_set_system utf8
collation_connection cp1250_czech_cs
collation_database cp1250_czech_cs
collation_server cp1250_czech_cs

OS is WinXP SP2

Hope for a solution :D