Why would you run more than one operating system at the same time? An actual question.
Selected post once. It took a long time to finish, and had to get off the computer soon. So selected stop.
Pressed post again, and when the screen changed to the thread page, shut down the computer promptly (by pressing the button).
Then when got onto the internet today and selected restore session, the post screen was up again with the message--as though it hadn't posted. So selected post again.
There. That's why there are so many posts. You can make snide comments if you want....