Yep, it's done that to me many times ... intermittently. I used to lose the whole reply as I'd have to close the window and try again. Now I just insert one of the unwanted smileys, close the smiley window, then open it back up, delete the unwanted smiley and insert the one I wanted.

Like I said, it's intermittent and I've learned to live with it. For some reason, I never thought to ask here ... but it used to frustrate the heck out'ta me before I learned to work around it.