Sharp PC-GP10 Series Operation Manual page 103

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Confirm the drive and file names are correct.
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Confirm the disk is not stained or scratched.
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Confirm the disk or files are supported.
Question: Why doesn't the DVD movie play smoothly?
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Set back the screen resolution, color quality and screen refresh rate to the
default value.
Question: Why isn't the optical drive recognized?
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If the computer is turned on with some kind of DVD disks inserted in the drive,
the drive may not be recognized. In this case, turn off the computer and open
the disk tray by the way on Question: Why does not the drive open? of the
previous page. Remove the disk from the drive; then turn on the computer
again.
Trouble with Communication
Question: Why can't I communicate through the built-in modem?
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Confirm the telephone line is properly connected to the modem jack.
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Confirm the dial setting (plus or tone) of Windows XP or communication
software are matched with the telephone line.
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If you set your connection status using New Connection Wizard , check Use
dialing rules in the Properties dialog box of that connection status. Refer to
Internet Connection of chapter 5.
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Confirm the country/region setting is appropriate.
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Confirm the network configuration is appropriate.
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Confirm the user name or password is correct.
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Confirm the COM port in the communication software is set appropriately.
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Turn off the power management in the Windows.
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If an unusual device is attached to the line you are connecting to, the modem
may not function properly. Remove the device or contact the dealer of the
device.
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If your computer is connected to a PBX, consult the PBX maintenance staff or
its service company. If the electric characteristics of your PBX are different
from those of a regular analog line, the modem will not function properly. If
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