Caps Lock not working

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http://askubuntu.com – My Caps Lock key on my keyboard is not working. The light indicator does not come on and nothing is capitalized when typing. What do i need to do to fix this issue. xmodmap -e "add Lock = Caps_Lock" did not work. Swapped out other keyboards and still have the same results. The Caps Lock is working on all three on windows. (HowTos)