The external monitor does not show the menu bar.

mOpen the Monitors control panel and drag the small menu bar to the icon of the monitor that you want to display the menu bar.

The pointer won’t move from one monitor to another.

mThe pointer moves between monitors in the area where the monitor icons touch in the Monitors control panel. Open the Monitors control panel and check that the positions of the monitor icons match the positions of the actual monitors. If not, drag the icons until they are positioned as you want them.

There are black bars at the top and bottom of the monitor screen. The monitor shows the same image as the display.

mThe video mirroring feature is turned on. With video mirroring, the monitor shows the same image as the internal display. You can turn it off using the PowerBook Display control panel, or the Video Mirroring portion of the Control Strip.

The monitor goes dark after a few minutes.

mScreen dimming may be turned on. Move the pointer to restore the screen’s brightness. You can change the interval before screen dimming takes effect in the PowerBook control panel.

The computer freezes when screen dimming takes effect.

mScreen dimming does not work with some programs. Open the PowerBook control panel and turn off screen dimming.

There is wavy or jittery interference on the external monitor.

mThis interference may be generated by a magnetic field. If the monitor is near another piece of equipment (such as a TV, speakers, or another monitor), move the monitor away from the equipment.

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Apple 2300 Series manual External monitor does not show the menu bar