I'm afraid they're gone. I type so slowly that the post function has "timed" out on me. If I wish to type a long message, I've done it in Word then copy and paste to the forum. If you don't have any pictures attached, you can "save draft" then come back to it in the user control panel.
There's something when someone else posts as you write yours. I've clicked the notification of the other person's post thinking that it was the submit button for mine, much to my annoyance.
It's amazing how short a post can become when it's written a second time!
The software is 3rd party Gus. I don't think that there's much that anyone here can do to alter the way it works. I do sympathise with you though; it must be very annoying.
Maybe compose the post offline and then just copy and paste to post it?