Troubleshooting 8-7Keyboard, Mouse, and Touchpad ProblemsThe keyboard does not respond.z Try connecting an external keyboard. If it works, contact anauthorized dealer, as the internal keyboard cable might be loose.The numeric keypad is disabled.z Make sure that the Num Lock is switched on. (Check if the Num LockIndicator glows or not.)The external keyboard does not work.z Make sure that the keyboard cable is properly connected.The USB mouse does not work.z Make sure that the mouse cable is properly connected.The touchpad does not work, or the pointer is difficult to controlwith the touchpad.z Make sure that the touchpad driver is correctly installed.z Make sure that the touchpad is clean.LAN ProblemsI cannot access the network.z Make sure that the LAN driver is correctly installed.z Make sure that the LAN cable is properly connected to the RJ-45connector and the network hub.z Make sure that the network configuration is appropriate.z Make sure that the user name or password is correct.
