My IBM Thinkpad Laptop key board

Laptop computers have the advantage being portable and self-contained, but among their drawbacks is a keyboard without a separate number keypad. While for most applications number keypads are unnecessary, they can be useful for data entry. Laptops sometimes provide a number keypad by giving certain keys double duty, allowing them to enter numbers rather than letters when a "Number Lock" setting is turned on. Number Lock, however, can get turned on accidentally, or enabled by an operating system by default, which can really mess up your typing. If typing "M" ends up displaying a "0" on your screen, Number Lock is probably the problem.

Try to locate the function key. On a T-series ThinkPad, it's in the lower left hand corner. It should be labeled "Fn," and the lettering may be blue, green or red instead of white. If your laptop lacks a "Fn" key, use the "Shift" key for Step 3 below instead. Locate the key labeled with "NmLk". On a T-series ThinkPad it shares a key with "ScrLk" which sits on the very top row between the "PrtSc" and "Pause" keys. On other IBM laptops, the "NmLk" key might share a key with "Delete." While holding down the "Fn" key or the "Shift" key, depending on your model, press the "NmLk" key. This should turn off Number Lock and restore your keyboard to its usual state. Number Lock on an IBM laptop is a "toggle" setting. You can turn Number Lock on by following the same steps.

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NUMBER LOCK
You have press the NumLk key (number lock) and this changes the right hand keys to a number pad.
Press the NumLk key (also doubles as the ScrLk key to toggle the Number lock). it is near the F12 function key. When the NumLk has been enabled a LED light is turn on to indicate this function has been selected. Press the NumLk key again to turn off the Number Lock.

Back up your most important data to an external storage device in case anything goes wrong while changing the BIOS settings. Remove any disc that is currently inserted in the IBM Thinkpad X41's disc drive.
2-Shut off the Thinkpad X41 laptop. Turn the laptop back on and wait for the "To interrupt normal startup, press the blue Access IBM button" message to appear on the screen.
3-Tap the blue Access IBM button at the top of the keyboard. Click the "Access BIOS" button when the "Rescue and Recovery" menu appears.
4-Click "Yes" and wait for the BIOS to load. Type in the current BIOS password for the IBM X41 and press Enter.5-Navigate over to the IBM's "Security" heading by tapping the right arrow key twice. Scroll down to the "Supervisor Password" listing and press "F5."6-Type the IBM's current BIOS password and hit Enter. Leave the next field blank if you want to completely remove the BIOS password, or instead type in a new password to replace the old one. Press Enter.7-Press "Escape" and then highlight "Restart" and press F5. Navigate to "Save changes and Restart" and press Enter.

The NumLk has been selected anf the NumLk LED is on to show that the NumLk has been selected.
Press the ScrLk/NumLk key to turn off the NumLk, this key is above the F11 key.

go to good hardware laptop shop your keyboard is short or check your any keyboard i think it is press automatically.

When the RH side of the keboard types numbers instead of letters then the Num Lock (number lock) key has been pressed.
Press the Num Lock Key again to return to letters again, usually this is usually done by pressing the Shift key plus the ScrLk (Scroll lock) key, this key will be also marked NumLk, and there will be a LED light that will indicate when the number lock is on.

With my IBM Thinkpad, I had to hold Shift+ScrLk to turn off Number Lock.

Hi there,
Try holidng the "Fn" key and the "NmLk" keys together and see if that helps.
Jeff

Make sure NumLock is OFF.

Do the following steps:

1. Press and Hold Fn then Press Numlock/Scroll lock, if it works then good.
2. otherwise Press and Hold Shift Key then Press Numlock/Scroll lock.

If still problem just Ask me

Thanks
Iqbal