1 user can’t surf

I have a PC runnning XP Home with 2 user accounts. When logged in as user 1 everything works fine but when logged in as user 2 I can’t get on the web. I use Earthlink to connect and I can access my email using Outlook Express but when I open IE all I get is the “Page can not be displayed” error. If user 1 is logged in user 2 can dial-up Earthlink(using his Earthlink acct name and pw) and access both email and the web, so it doesn’t look like a problem with Earthlink.

Any ideas?