[SOLVED] Wireless keyboard doesn't work with XBian

[Hachecode]

I have solved this issue

After posting my problem, I found this post, and it gave me the clue.
Keyboard/Mouse not responding for Raspbmc and OpenELEC

My problem was the following:
Kano Kit power source is an UK plug. I'm from Spain, so I used an spanish-type plug adapter.
Kano Adapter Output: 5.25vdc / 1A
My recicled adapter Output: 5.0vdc / 500mA

I have found a new adapter with an output 5v / 1A, and now everything is OK.

My doubt is... why did it work with Raspbian, but not with Xbian/OpenELEC?