Why are some of my items missing when I tell MenuStrip to display in the menu bar?
When displaying in the menu bar, MenuStrip cannot overlap the other menus currently being shown in the menu bar. This means that if you have limited free menu bar space and you switch to an application that has many menus of its own, some of MenuStrip’s items will be hidden from view. However, the MenuStrip items that can fit in the available menu space will remain visible. If you have a smaller screen (such as an iBook with a 12″ screen), you will probably get the most benefit out of using MenuStrip as a control strip. By using it this way you can actually extend the amount of available menu space that you have. You can then disable some of the system menu extras (such as the clock and volume control) and use MenuStrip’s items instead to conserve even more menu bar space.