64 Make sure that the Tablet PC is not in Sleep mode. If using an external speaker, make sure that the speaker is properlyconnected.Distorted sound is produced. Make sure that the volume control is not set too high or too low. In mostcases, a high setting can cause the audio electronics to distort the sound.Startup ProblemsWhen you turn on the Tablet PC, it does not respond and the PowerIndicator does not light green. If you are using an external AC power, make sure that the AC adapter iscorrectly and securely connected. If so, make sure that the electricaloutlet works properly. If you are using the battery power, make sure that the battery is notdischarged.When you turn on the Tablet PC, it stops after POST. Reset your Tablet PC.WLAN ProblemsI cannot use the WLAN feature. Make sure that the WLAN feature is turned on.Transmission quality is poor. Your Tablet PC may be in an out-of-range situation. Move your Tablet PCcloser to the Access Point or another WLAN device it is associated with. Check if there is high interference around the environment and solve theproblem as described next.Radio interference exists. Move your Tablet PC away from the device causing the radiointerference such as microwave oven and large metal objects.