ya. i not sure why. usually caused by browser closed as it hangs.
[b][color=blue]it is working now.[/color][/b] sometimes it is not reliable.
i used the mysql provided by my host.
did you do something special to make your database 99.99% reliable?
wonder if there are settings like to make the database drop request if it takes more than 2 minutes to process?
not sure if i install my own mysql database will improve the reliablility.