The time out feature is a security measure, designed to prevent tampering by unauthorised personnel. If a module is left unused for longer than the system time out period, it is assumed that the user has left their computer unattended. Any open subject records are closed and the user's password is needed to continue working.
Select File > System Properties...
Enter the time out period in minutes. This must be a whole number between 1 and 300. The default is 300.
Click OK to save the setting or Cancel to close the box without saving.