BleepingComputer.com: cannot connect to internet

I am using my laptop to contact you because I cannot connect to the internet at all on my desktop. I was running scan this AM, during scan screen went blank (totally white) since then I cannot connect to internet. I get the following:

Server Not Found

Firefox cannot find the server at www.(any page i try to connect load)

Check the address for typing errors such as
ww.example.com instead of www.example.com

If you are unable to load any pages check your computer's network connection.

If your computer or network is protected by a firewall or proxy, make sure Firefox is permitted to access the Web.

I cannot get to any of my anti-virus software, I cannot find any of the logs, nothing. I am running Windows XP Home Edition, Version 2002, Service pack 3.

This post has been edited by hamluis: 15 September 2011 - 12:27 PM
Reason for edit: Moved from XP to Am I Infected.

if u use one of those flash things, then replug it

and try to Disable Proxy, i use opera and i dont use firefox but find Proxy and disable it

I am not having any issues with the laptop, just my desktop. I don't even know where to begin looking to Disable Proxy

Control panel - internet options - connections tab - lan settings button.
Make sure proxy is disabled

Also check device manager to see if it reports your drivers installed for the Internet correctly.
Whats the make/model of the system?

I am running Windows XP Home Edition, Version 2002, Service pack 3.

I disabled proxy but still same issue. when I check device manager to see if drivers are installed for Internet, what is I am looking for? I'm not sure what I am looking for. I can't even get system restore to open.

I am using a Dell
Microsoft Windows XP
Home Edition
Version 2002
Service Pack 3

Intel ® Pentium® Dual CPU
E2160 @ 1.80 Hz
1.79 GHz, 0.99 GM RAM

Under LAN settings the box "Automatically Detect Settings" is checked. Proxy Server is unchecked.

In Device Manager everything looks okay except under Network Adapters. it shows

Intel ® 82562V-2 10-100 Network Connection

This one has a red X
Intel ® 82562V-2 10-100 Network Connection-McAfee Core NDIS Intermediate Filter Miniport

This one has a yellow !
McAfee Core NDIS Intermediate Filter Miniport #2