Keyboard 10 key not working

[DeepThought]

Has your number pad ever worked or is it just after this new install ?
If not did you select the correct keyboard layout ?
try changing your keyboard layout:

Menu - settings - Keyboard
Click on the Layout tab and untick the Use system defaults box
Under the Keyboard model is a drop down box with various keyboard layouts, see if your keyboard model is there.
Close and test your number pad.
Might take a few trials before you find the correct one for your keyboard.

Hope this helps