I have encountered this problem a few times and I am not sure why. Every so often, my respond to will not work. I will click on the name I want to send the response to, right click, hit "Respond To" then type in my message. Upon sending it, though, it just comes up as a normal message. There is not nickname to determine who I sent the message too.
I have uninstalled and reinstalled and this is the only way I am able to fix it, but then after awhile again it stops working..
HELP!
![Sad :(](./images/smilies/icon_sad.gif)
-Kristin