Recently I've been getting a window on my desktop that says "messenger service" to xxx.xxx.xxx.xxx (my ip address) from (the spammer) then it has an Ad. I'm not sure what program installed this hideous beast or how to find it and remove it. Does anyone have any insight? Here's what I do know about it. It is not an IE popup window. It's a non descript gray window. I sometimes get multiple ads per day. They are all spammy gimmicks and porn. They are just plain text, never HTML or hyperlinks. If I can't remove it, I'm gonna reformat. Please Help.