Be very suspicious of any tasks appearing to be windows security programs that you did not install. I just downloaded 2 trojans masquerading as windows security programs. They appear in the systray as the normal windows security shield icon. They are named XP Smart Security and XP Defender Pro. I did a system restore to ensure that they are quarantined. Here are some links on the trojans ... http://www.virusremovalguru.com/?p=5933 http://www.virusremovalguru.com/?p=5937