I recieved a link by one of my friends, which I clicked without reading and the moment I clicked, my anti-virus software popped up saying that they are detected a trojan and put it in the qurantine [sp]. Are this viruses passed through msn messeneger a big threat to you computer? Because after I removed the trojan from the qurantine, my computer still works the same. So, I just wanted to know, do I have to seek help from a techinican or something or do I just ignore it?