Problem with mod_ruby and mod_auth_mysql

Hi,

I have a following problem.

On one apache server we run two applications. Application one is using
mod_auth_mysql and application two use RubyAuthHandler from mod_ruby.
This auth handler also authorize user from mysql. Problem is, when I
load mod_auth_mysql to apache, my ruby AuthHandler ignore all setting
about mysql connection and try to log on as default user (apache) to
default host (localhost) with no password.

When mod_auth_mysql is not loaded, everything work. Does anybody have
idea where can be problem?