The keyboard problem of f10

BenMoMo

Hi, everyone
I've just met an annoying and funny problem of f10:
Every time after I login KDE4, if I press Ctr+C, The X server restarts immediately.
After that, every time press the button '2/@' on the main keyboard (not the numbers
keyboard), the X server restarts immediately. It sounds funny, but it really annoys me
since I'm using a notebook(it's not convenient to turn on the Numlock) and my root password contains 2.
Do you guys know how to deal with it? Is it a bug of f10?

tiansworld

keyboard是用的us的布局吗？