In Outlook Express, goto Tools > Options. Click the ''Connection'' tab, and you will see a section called ''Internet Connection Settings''.
Click the Change button and this will take you to Internet Explorer's Connections on Internet Properties. Make sure the ''Always dial my default connection'' is selected. Click Apply, then OK, then back in OE's Options, click Apply, then OK again.
See if that helps.
Mark
When I open Outlook Express it does not automatically start the dialup connection. This previously worked, but it stopped recently, perhaps because of some updates I downloaded. The automatic dialup still works when I open Internet Explorer 6.
wsmith5

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic