Is it possible for someone to "sneak" into my machine while I am online and either take, or erase a program?<<< Is it possible? Not only is it possible, but it is relatively easy. Now I am not saying that is what happened to your Poser. I am only answering the above question. DO NOT USE THE INTERNET WITHOUT A.) AN ANTI-VIRUS PROGRAM AND B.) A FIREWALL. I am sure that there were those who were insulted by an earlier post I made. For those that did not have a chance to get their knickers in an uproar, I will repeat it. If you use the Internet and you do not use a firewall, you are either a fool or a sociopath... maybe both. The sad part is that after tests by some very tough people, one of the very best firewalls out there is free - Zonealarm. Get it.