Acer TravelMate 290 User Manual page 58

50
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 17 for more
detail.
• If headphones, earphones or external speakers are connected to
the line-out port on the computer's left panel, 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 button 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 the USB 2.0 connector on the
rear or left of the computer. If it works, contact your dealer or an
authorized service center as the internal keyboard cable may be loose.
3 Troubleshooting my computer