I composed a message and clicked [preview]. It was redisplayed with a message saying it contained HTML (it didn't) which was removed. I then clicked [submit] and it redisplayed with a message that told me to correct indicated errors and re-submit. So I clicked [submit] again and now there are two occurances of my post. I tried to edit and delete one of them but there is no delete function as there is on other forums, It was not my fault!
