Thanks for the reply's. Knowone has access to my computer except me, therefore I am concerned only with someone entering from outside.
I will give you a little more background to my situation: I checked my hotmail last wednesday night and found two Emails from an old friend who was going to help me with a problem that I have. I then (one of these mails still selected) receive a yahoo message from another friend who lives abroard. I then start chatting to him about the Email I have just received, and it is here that I suspect that infomation changed hands.
I know the chances are small but I am concerned that someone has violated my privacy.
LE.