Help Is Available Is an External Device Not Working? If an external device does not function as expected: ■ Turn on the device exactly as instructed in the device documentation. (Some optional devices, such as external monitors, printers, and devices connected to a parallel connector, must be turned on before the notebook is turned on.) ■ Verify that: ❏ The device is connected to the correct jack, port, or connector. ❏ All device connections are secure. ❏ The device is receiving adequate electrical power. ■ Install the latest available system ROM (read only memory). For instructions, refer to your model-specific documentation. ❏ The correct device drivers are installed. 1–4 Troubleshooting