Hello! My sister called me last night stating she was getting a box that popped up with the message that "Your system is probably infected with latest version of trojan.zlob.x.a Full system optimization will greatly increase your computer's performance and prevent data loss." She is running Vista Home Basic and I'll be trying to help her in these next few days. The first thing I tried last night was from the website listed below and I found none of the things listed. Is it possible to get the above message without actually having the virus? http://www.pcontech.com/spyware/remove/trojan.zlob-remove.htm It will be a couple of days until I can get to her computer and start working with it, but I figured I might as well start with this.