I was using the HTC Facebook app but whenever I wanted to read message threads that were quite long, the thread seemed to stop at a certain point. I was unable to scroll any further to see the latest reply. Now I have switched to using the standard Facebook for mobile, and I can see all replies in a message thread but now I can't reply to messages. There is a reply button and a field to post my reply, so I type in it then hit reply, but my reply is never posted. Anyone have any tips?