Thanks in advance for any ideas. I'm running Windows 98, and IE 4. I have internet connectivity through DSL, and can sucessfully ping external IP addresses, as well as sucessfully ping external domain names (like www.yahoo.com). Yet IE presents the 'web page unavailble' error when I enter www.yahoo.com in IE's Address field, and/or when I choose File | Open, and enter www.yahoo.com in the Open field. This same system used to be able to surf the web just fine. The only thing that has changed, to my knowlegde, is that now it is on a network, behind a Linksys router, (the router is acting as a DHCP server/firewall.) Ipconfig shows that the system is receiving its IP address just fine, and the system can ping other internal hosts. Other hosts which receive their IP from the same router on the same subnet can surf the web just fine. There are no IP address conflicts, and there are plenty of IP's to go around. (As an aside, if I can successfully ping external domain names (ping www.yahoo.com) from this system, then entering IP addresses in the Address field of the browser and attempting to reach the site that way, is useless in troubleshooting, right? In other words, if I can sucessfully ping domain names, then I have no DNS server problems, right?) Is this a hosts file problem?

did you check the internet option and see the setting is direct connection???