OK, I'm not the most cautious web browser in the world and from time to time have found myself connected to sites that were probably a bad choice. I haven't had any problems in the past year until this morning. My SO was emailing someone and several error messages popped up regarding System Errors and an Internet Antivirus Pro warning, which of course wanted them to download the program, I assume. It was not downloaded. The mouse cursor would still move, but you couldn't click on anything on the screen. So a hard force quit was done, and the modem was shut off. Turned the Mac back on, ran a Intego VirusBarrier check, all was OK. I then googled "Internet Antivirus PRO" and it sounds as if it is a major piece of malware/spware/trojan....something bad that is very difficult to remove(from a PC...that is-there even is a YouTube video showing you how to go about the removal process on Windows). I can find NOTHING on this "program" being on a Mac. Should I be concerned? Is it as easy as going into my downloads folder and deleting anything with an .'.exe' in it, or is it more complicated. Any help would be appreciated. I also have an external hard drive hooked up to my Mac, if that matters. I really don't want to be spreading the "love" to my Windows friends either, if I can help it. Thanks.