Thanks for your time. Now my startup.pl looks like

#!/usr/bin/perl

BEGIN
        {
        use Apache::DBI;
        }


$dbh = Apache::DBI->connect_on_init("DBI:mysql:database=dbname;host=lo
+calhost","dbuser","dbpass",{ PrintError => 1, RaiseError => 0, AutoCo
+mmit => 1});

1;
[download]

Still have same error - "Apache.pm was not loaded". I have installed mod_perl from apache.org today and Apache::DBI from CPAN. So I thing both are latest packages.