Internet access

Ensure that the browser settings are correct for the ISP. This includes proxy settings and the like.

As far as I know, those are ok. Could it be a virus? I won't get to talk to him until Thursday so any and all answers are welcome!!

need a lot more information before we can try to give suggestions, like is he runnings Windows? if so which versions? what browser is he trying to use Internet Explorer or another one like Netscape Navigator. What is the method he's using to connect to the internet. Dialup, cable, DSL. What are the current settings for the web browser e.g. if Internet Explorer open the browser, click on tools in the task bar, click on internet options. Click on the connections tab. what are the settings for dialup and VPN. Click on LAN settings radio button. what are those settings. What error message is he getting.

Sorry...list can get long...but I think you get the point. need more info

Simple, You have the gateway and ip address right, but not the dns numbers. Check those and you will surf

Make sure that the email your Uncle is seeing is not the ones that are cached (in memory)test it out. If he can email, then the Gateway is up and running, but no web pages might mean a security setting for the browser. You can reset IE (your browser) by going into the Internet Properties>Advanced and choose "Reset". Get the facts; Internet Provider? Email Provider? Internet Connection media? (Phone, cable, etc..?)Hope this helps.

Delete temporary internet files and delete all of the cookies. Make sure DNS settings are correct and that the browser is up to date. Also make sure that your resolution is set high enough (some pages will not load properly on low res. or an old browser).
Also try updating from http:\\windowsupdate.microsoft.com as this page should load with older IE browsers.

Also reset security settings, proxy settings, and scan the system for viruses

I think we've narrowed it down to a Trojan horse. Thanks to all responses.