instant messager is not working properly, i can send a response to an im but it is not received. when i type the response it is in the color and font I had set up but when i hit send it changes the color and font and automatically the person i am sending to appears offliine. I contacted that person but they were sitll signed in and did not receive my IM. this has happened several times today. a couple of days ago i think i was exposed to a virus.