I have a form where I log the user in a sessions table when they log into the form . If a second user tries to log in I display the message saying Irradiation in progress, please wait until completed. And once they exit out I am clearing this sessions table. But accidently if the user exits the i-explorer there is no way for me to clear the sessions table. So the table is locked and the user cannot reenter the screen until the table is cleared. So i have to do in the background via toad to clear the table. If this happens in the midnight, as they irradiate all times, I have no way to do unless they call me home and I login to the system. Is there a way to control i-explorer or to log into another that this session was abruptly closed?