Hello --
My laptop computer had multiple message windows open with "Antivirus software alert" and "Activate your antivirus software" included in them. I was able to get my Norton 360 to run using "Comprehensive Scan" option with selection to shut computer down when complete.
Several hours later when I restarted computer a message "Your computer is being attacked by an Internet Virus. It could be a password-stealing attack, a trojan - dropper or similar." appeared. I ran "Run LiveUpdate" option within Norton 360 and it completed normally. I ran Norton 360 again, this time using "Quick Scan" option with selection to shut computer down when complete.
When I restarted computer, no virus or trojan horse messages appear, but when I open Internet Explorer I get the message "Internet Explorer cannot display the webpage." When I try to "Diagnose Connection Problems" I get a proxy server configuration error.
I don't know what to try next -- suggestions?