Keyboard mapping doesn't work as before

Question

I modified the keyboard mapping using xkeycaps, then i press the button to restore it but it doesn't work like before.. For example the cursor keys doesn't work. When i press the up cursor key while xkeycaps open, xkeycaps highlights the Print Screen key.

Ubuntu 12.04

Answer 1

I just removed the ~/.xmodmap file that xkeycaps generate, and the keyboard works as the beginning.