66 Make sure if any device driver needs to be installed. (Refer to the documentationthat came with the device.) Make sure if the device needs any jumper or switch settings. (Refer to thedocumentation that came with the device.) Check the cables or power cords for correct connections. For an external device that has its own power switch, make sure that the poweris turned on.Power Management ProblemsPower Management ProblemsPower Management ProblemsPower Management ProblemsThe Tablet PC does not enter Sleep or Hibernation mode automatically. If you have a connection to another computer, the Tablet PC does not enterSleep or Hibernation mode if the connection is actively in use. Make sure that the Sleep or Hibernation time-out is enabled.The Tablet PC does not enter Sleep or Hibernation mode immediately. If the Tablet PC is performing an operation, it normally waits for the operationto finish.The Tablet PC does not resume from Sleep or Hibernation mode. The Tablet PC automatically enters Sleep or Hibernation mode when the batterypack is empty. Do any one of the following:− Connect the AC adapter to the Tablet PC.− Replace the empty battery pack with a fully charged one.