Hi there, I have searched the mailing list and followed what it is said in the manual doc. But, somehow, still can not make it work. I'm using OTRS1.1, Apache/2.0.40 and mod_perl-1.99_05-3 on Redhat 8 box. I have installed two OTRS instances otrs and otrs2. In the httpd.conf, I have: ScriptAlias /otrs/ "/opt/otrs/bin/cgi-bin"Alias /otrs-web/ "/opt/otrs/var/httpd/htdocs"Perlrequire /opt/otrs/scripts/apache2-perl-startup.pl ScriptAlias /otrs2/ "/opt/otrs2/bin/cgi-bin"Alias /otrs2-web/ "/opt/otrs2/var/httpd/htdocs"Perlrequire /opt/otrs2/scripts/apache2-perl-startup.pl In /opt/otrs/scripts/apache2-perl-startup.pl, I have: use lib "/opt/otrs";use lib "/opt/otrs/Kernel/cpan-lib"; In /opt/otrs2/scripts/apache2-perl-startup.pl, I have: use lib "/opt/otrs2";use lib "/opt/otrs2/Kernel/cpan-lib"; I have also modified two Kernel/Config.pm. One has $Self->{SystemID} = 10; And the other one has:$Self->{SystemID} = 20; The problem is that http://hostname/otrs/index.hmtl and http://hostname/otrs2/index.html are total the same if I load two otrs instances. Both are running the first instance in httpd.conf. If I run each instance seperately, each instance is running okay. One has session id 10****. And the other one has session id 20****. I'm wondering that what else I should modify or update. Thanks in advance for the help!Jimmy --------------------------------- Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo.