I have been noticing a number of duplicate and triplicate replies. This usually happens when the forum slooooooows down and folks are not sure if their reply went through or not. Quite often they will click the "Submit Reply" button a second or even a third time. When they do get back to that thread they find that they in fact replied more than once but have no idea how to correct this. It is simple to delete dulicates.
With the duplicate reply on your screen click on the
icon at the top of that reply. A small window will open asking for your password. Enter your password and click on "Send". Viola, the duplicate is gone.
You can also use this
icon to delete your New Original Post as well.