188 If Something Goes WrongResolving a hardware conflictFor more information on maximizing battery power, see“Charging the battery” on page 87.Keyboard problemsIf, when you type, strange things happen or nothing happens,the problem may be related to the keyboard itself.The keyboard produces unexpected characters.A keypad overlay may be on. If the numeric keypad or cursorcontrol light is on, press Fn and F10 simultaneously to turnoff the cursor control light or press Fn and F11simultaneously to turn off the numeric keypad light.If the problem occurs when both the keypad overlays are off,make sure the software you are using is not remapping thekeyboard. Refer to the software’s documentation and checkthat the program does not assign different meanings to any ofthe keys.You have connected an external keyboard and theoperating system displays one or more keyboard errormessages.If you have a second keyboard, try it. If it works, the firstkeyboard may be defective or incompatible with yourcomputer.Display problemsHere are some typical display problems and their solutions:The display is blank.Display Auto Off may have gone into effect. Press any key toactivate the screen.You may have activated the instant password feature bypressing Fn and F1 simultaneously. If you have registered apassword, press the Enter key, type the password and pressEnter. If no password is registered, press Enter. The screenreactivates and allows you to continue working.
