odbc connection to a remote system

[eluser]Waiel[/eluser]
Hi,

i have a project I'm working on it which requires accessing multiple DB on different servers
the Database are Microsoft Access Database.

so i followed the user guide http://ellislab.com/codeigniter/user-gui...cting.html

but i was unable to successfully connect. does the ODBC uses a special port ?

Please note the web server is a Unix based system while the Database servers are all windows


Thanks