What fysiks is saying is that your keys must be binded like this for the menu to work. These are the normal bind settings for the keys:
Code:
bind "0" "slot10"
bind "1" "slot1"
bind "2" "slot2"
bind "3" "slot3"
bind "4" "slot4"
bind "5" "slot5"
bind "6" "slot6"
bind "7" "slot7"
bind "8" "slot8"
bind "9" "slot9"
Are your keys binded like this?