there is this huge instant messenger virus going around. If you recieve a random link that is jpeg.exe or just .exe DO NOT OPEN IT. It actually a really smart virus. If you do click the link, it will freeze up your computer. Then the next time you log on it will send that link to everyone on your buddy list. If you do get infected, there is a link to get it fixed that im hoping xtremerunnerars will give to me cuz i dont know it at the moment.
Hope this will save you a lot of hassle.
Sorry if this is old news.