Acer 4651 User Guide - Page 30
power. I cannot eject the optical drive tray.
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English 22 Image is not full-screen. Each computer display has a different native resolution depending on the size of the screen. If you set the resolution lower than this native resoution, the screen expands to fill the computer display. Right-click on your Windows desktop and select Properties to bring up the Display Properties dialog box. Then click on the Settings tab to make sure that the resolution is set to the appropriate resolution. Resolutions lower than the specified resolution are not full-screen on the computer or on an external monitor. No audio is heard from the computer. Check the following: • The volume may be muted. In Windows, look at the volume control (speaker) icon on the taskbar. If it is crossed-out, click on the icon and deselect the Mute option. • The volume level may be too low. In Windows, look at the volume control icon on the taskbar. You can also use the volume control buttons to adjust the volume. See "Hot keys" on page 14 for more detail. • If headphones, earphones or external speakers are connected to the line-out port on the computer, the internal speakers automatically turn off. I want to eject the optical drive tray without turning on the power. I cannot eject the optical drive tray. There is a mechanical eject hole on the optical drive. Simply insert the tip of a pen or paperclip and push to eject the tray. The keyboard does not respond. Try attaching an external keyboard to a USB 2.0 port on the computer. If it works, contact your dealer or an authorized service center as the internal keyboard cable may be loose.
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