How to disable Caps Lock for good?

[Globe Trotter]

Hi,

I was wondering how one disables caps locks for good? I do have a .Xmodmap which goes as follows, but it is not clear this is being read:

[DING!] :~$ more .Xmodmap 
keycode 22 = BackSpace
remove Lock = Caps_Lock
clear Lock



Many thanks,
T