53 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.Keyboard and Touchpad ProblemsThe keyboard does not respond. Try connecting an external keyboard. If it works, contact an authorized dealer,as the internal keyboard cable might be loose.Water or liquid is spilt into the keyboard. Immediately turn off the computer and unplug the AC adapter. Then turn thekeyboard upside down to drain the liquid out of the keyboard. Make sure toclean up any part of the spill you can get to. Though the keyboard of yourcomputer is spill-proof, liquid will remain in the keyboard enclosure if you don’tremove it. Wait for the keyboard to air dry before using the computer again.The touchpad does not work, or the pointer is difficult to control with thetouchpad. Make sure that the touchpad is clean.LAN ProblemsI cannot access the network. Make sure that the LAN cable is properly connected to the RJ-45 connectorand the network hub. Make sure that the network configuration is appropriate. Make sure that the user name or password is correct.