Dell Latitude Latitude LT System User Manual page 105

Question: Why can't I communicate through the built-in modem?
(The built-in modem may not be available in some countries)
Confirm the item Modem is set to Enabled or Auto in the Advanced menu of the
Setup Utility.
Confirm the telephone line is properly connected to the modem jack.
Confirm the dial settings of the communication software are matched with the
telephone line (Example: To access an outside line, first dial "7" for local, "1"
for long distance).
Confirm the network configuration is appropriate.
Confirm the user name or password is correct.
Confirm the COM port in the communication software is set appropriately.
Turn off the power management both in the Windows and the Setup Utility.
Other Troubles
Question: Why is the date and/or time incorrect?
Correct the date and time using the Date/Time icon in the Windows Control
Panel or the Main menu of the Setup Utility.
Question: Why can't I produce sound?
Check the volume control on the right side of your computer.
Click the speaker symbol on the taskbar and check the Windows volume control.
Question: Why can't I use a hardware device?
Make sure the hardware device is not crossed out with an X mark using the
following procedure.
1. In the System Properties dialog box, select Device Manager.
2. Select the device you cannot use.
3. Click Properties, and uncheck Disable in this hardware profile.
Troubleshooting B-7