How to disable ip locking?

hi there

i want to disable the IP locking feature as i have the poll on the members area and that doesn't get MANY votes, so who cares if they vote twice? i tried using the option 'logging off' but i am not sure if that should help. in any case it didnt work and if i still have the same IP counts as 1 vote all the time and i get "you have already voted"

thanks, either reply me by hardship@tin.it or on icq at 132516819

cya!