I also have this problem. I always feel if they wanted to talk to me then they would start the conversation. If they don't start one then I think I was right and they didn't want to talk to me. My issues go beyond just IMs too. I can't make phone calls at all. Even if someone tells me to call them. I even have a hard time sometimes starting a conversation with my best friends when they are standing right next to me lol. I won't start posts on forums because I figued people don't want to read anything I have to say. I don't even like answering post for the same reason. I'm working on that one though as you can see.