A google search on it Leads to this http://answers.yahoo.com/question/index?qid=20080124222356AAn3TD5 Make sure your antivirus is up to date and do a full system scan.
RE: A google search on it </p> Did that Nick, but I just wanted to know what it did.</p> I was online this morning and just set the to comp shut itself down as I was in a rush and a bit late for the footy . When I came in it was still running with the message "TWAIN tracker is not responding" on screen. </p> Something also hijacked the desktop so I couldn't shut down. I switched off at the mains and did a system restore which sorted it out.</p> I've ran my anti virus and spyware programs and they found nothing. </p>