Dell CPX Notebook: Keys not working

We had a Dell CPX come in this week. We checked it out today. Certain keys work not working such as the 8, the 0 and the arrow keys.

On some occasions this can be cause by the motherboard but this time it was just a keyboard. The keyboard was in stock and the notebook is ready to go back out the door for some more action.

Keyboards are usually cheap enough to justify on most notebooks...