Recommendations and Troubleshooting 27
CD or DVD disks don’t seem to be
detected by the computer.
Please verify the following:
•
The computer is turned on.
•
There are no other disks inserted in the optical drive.
•
The disk that you want to use is properly inserted in the optical drive.
•
The CD or DVD disks are in good condition.
DVD movies will not play.
The region code of the DVD inserted must match that of the DVD
playback software used. This region code can be set up to five times. If
you have not reached this limit, a prompt will appear that will allow
you to change the region code of the software to match that of the
move. Otherwise, you can only play back DVDs with the same region
code as the last DVD played back successfully.
The computer is unable to use the infrared
port to communicate with other devices.
Please confirm the following:
•
Communication speeds for the computer and the external device are
identical.
•
The infrared port is clear.
•
There are no objects blocking the path between the computer and the
external device.
•
The distance and angle between the computer and device do not exceed
the effective range of the port.
•
You are not attempting to establish the link under conditions of direct
sunlight.
•
The infrared port is not facing any other infrared-enabled devices.
•
There are no incompatibilities between the communications software
that is attempting to establish the infrared link and any other communi-
cations software on the computer. For further information, please con-
sult the manual for the particular software.
Functions are abnormal after changing the
default OS.
All software applications and drivers in the computer are optimized
for the default OS. It may cause some functions abnormal after chang-
ing the default OS.If you want to upgrade your OS, please contact our
service personnel.