so please bear with me. Can someone explain what a "Trojan Horse" (in the computer sense) is? Is it a virus? I have the $39 Norton AntiVirus installed on my computer. FWIW, it will expiring in a few days. From what I read here on GT, it's NOT held in very high regard. About 2 months ago, I downloaded and installed the free 6.0 AVG antivirus software and have been letting it run simultaneously with the Norton. My intention was to see if I would feel comfortable in letting the Norton expire and use just AVG. About a week ago, I started getting a "TROJAN HORSE" warning message on my computer screen every couple of days while web surfing. Yesterday, when I ran my Norton virus definitions database update followed by a full system virus scan, NO VIRUSES were detected. This morning when I ran the AVG virus scan, it DID DETECT a "Trojan Horse" and indicated that AVG had "fixed" it. Could somebody please translate what happened and/or what's going on? How serious is/was this? I would be greatful for any information.