When I exit password safe, a process pwsafe.exe is left running in Task Mgr.
This causes problems if you try to change the main password. (v3.28 (4783)
As per ALL Windows applications that use a System Tray icon, pressing the X on
the Title bar just minimizes the application to the System Tray.
In order to fully exit Password Safe, you should use the Exit menu item on the
File menu. Alternatively, uncheck the option to use the System Tray icon
(Manage->Options; System tab).