USB Numeric Keypad - Disable NumLoc on Keyboard?

[D-Man]

I just picked up a USB Numeric Keypad for my R51 Thinkpad.

Can you have the Num Lock on to use the keypad, but somehow disable the Num Lock function on they keyboard? It would be nice if that can be done so I can use the keypad for numbers, and then not worry about typing numbers from the keyboard (i.e. letter u = 4, letter i = 5, letter o = 6, etc.).

Any idea if this can be done?

Thanks!