When using TOAD for MySQL 6.3 / 6.6 beta if you leave it open for a long time without any activity, it becomes somewhat non-responsive.
“somewhat non-responsive” means that you can type in the editor, click on menus/toolbars, but when you try to execute a query the program does not respond.
The only workaround is to kill the task by using the Windows Task Manager and open it up again.
The solution is as easy as strange, you just have to deactivate notifications.
1. Go to:
This worked for me.