I have been using 1.8.11 for Windows a while now, and the problem I have hasn't occurred until recently.
I'm unable to change topics via the topic box at the top of the screen; when I attempt to do this, it just acts as if I was typing something in the dialog box. When I click the topic box, it highlights but cannot be edited.
I apologize if this problem has been dealt with previously, but I didn't see anything about it.
pjustus AT arn DOT net