One Person

If this small post helps just one person...

In OSX, when it seems that your number pad is no longer working, it's probably because you have "Mouse Keys" turned on. This is a feature that is designed to help those with difficulties using the mouse better navigate by using the keyboard instead. For me, it is mostly the cause of frustration when I press the #5 button and, somehow, my machine stops letting me click anywhere.

The radio button to turn Mouse Keys OFF is located in the Universal Access tab, under Mouse. Not Keyboard. This is why I always forget where it is. To fix the behavior of your keyboard, go to the Mouse tab.

'Kay.