Outlook Express on Microsoft Client network

Hi there,

If this has been address a million times, I appologize. I have a strange
thing happening with Outlook Express 6 on a Win98SE machine. Here's what's
happening:

I have one WinXP machine connected via Ethernet to a LinkSys Wireless-G
Broadband router which in turn is connected to a Westell DSL modem
(Bellsouth). I have a Win98SE machine with a LinkSys wireless network card.
Both machines are running Internet Explorer 6.0 and Outlook Express 6.0.

Both machines connected to the internet perfectly (both browsing with IE and
sending/receiving mail with Outlook Express) until I tried to set up a
network between the two computers. Once I set up a network, the Win98
machine would no longer allow me to send or receive email with Outlook
Express. I can browse the net with IE and the XP machine works fine. Both
computers find each other and I can share files, print, etc. I just can't
do email. I get a "host not found" error. If I then remove the network
from the Win98 machine, everything works great... I just don't have the
network.

Can anyone help me?

Thanks in advance,

....Scotty
(E-Mail Removed)