I have just noticed that when I have replied to a few posts this afternoon, the pink box with red letters pops up declaring "error". This as we know has been occurring intermittently to several people over the past week or so. The key to not having repetitious posts ending up showing is to ignore the message and NOT hit either the 'reply' or 'cancel' box. If you then leave that page and then go back to it, you will see that your post showed up despite the fact that you did not click on either box!! A strange bug for certain.