The first time I click the MenuBar, the sub-menu show as below: +-----------+ | New | +-----------+ | Open | +-----------+ | Close | +-----------+ | Save | | Saveas.. | +-----------+ | Import...| | Export...| +-----------+ | Exit | | | | | | | | | +-----------+
The second time I click the MenuBar, the sub-menu show as below: The first time I click the MenuBar, the sub-menu show as below: +-----------+ | New | +-----------+ | Open | +-----------+ | Close | +-----------+ | Save | | Saveas.. | +-----------+ | Import...| | Export...| +-----------+ | Exit | +-----------+ Anyone has any idea?

