No gateways installed

My internet was really slow so i reinstalled the ethernet
card (Linksys lne100tx) and now the internet doesn't work
at all. I have all the right protocols installed (Client
for Microsoft Networks, Dialup Adapter, Linksys LNE100TX,
TCP/IP for both Dialup Adapter and Linksys LNE100TX, File
and Printer Sharing). I went to Microsoft Help and it
detected that the default gateway routing is wrong. My
other computer also runs Windows ME, although it has a HP
EN1207D-TX PCI 10/100. It runs the internet just fine. I
was told to remove te installed gateways, but my adapter
had no gateways installed on it. I was wondering if
anybody could solve my problem. Thanks.