Toshiba Portege 4005 User Guide - Page 199

199 If Something Goes Wrong Resolving a hardware conflict For more information on maximizing battery power, refer to "Taking care of your battery" on page 103 and "Conserving power" on page 105. Keyboard problems If, 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 numlock light or cursor control mode light is on, press Fn and F10 simultaneously to turn off the cursor control mode light or Fn and F11 simultaneously to turn off the numlock light. If the problem occurs when both the keypad overlays are off, make sure the software you are using is not remapping the keyboard. Refer to the software documentation and check that the program does not assign different meanings to any of the keys. You've connected an external keyboard and the operating system displays one or more keyboard error messages. The keyboard you connected may be defective or incompatible with the computer. Try using a different make of keyboard. Nothing happens when you press the keys on the external keyboard. You may have plugged the external PS/2 keyboard in while the computer was turned on. Click Start, Shut Down, and Restart the computer using the AccuPoint II on the internal keyboard. The computer will restart and recognize the device.