Setting Outlook interval for checking email

[George Mizzell]

I have an ISP providing my email and I have 3 different computers 2- with
Windows Xp and Office 11 (Outlook 2003) and the other with Office 2000. One
of these, Outlook will go out every 10 minutes or so and check for mail.
The other 2 never have looked on their own and I always have to hit
Send/Receive to check for mail. I have no idea how they are set up
differently. I have never set up anything in anyway to make it work with
any interval. What I want to to is set it to check every minute - How can I
change that setting?

Thanks
George Mizzell