Resetting Security Panel Password

hi, My name is Komang. Does anybody know how to solve this problem? I have Fujitsu Lifebook T4220. Because some problem of applicarions that had been installed, i decides to recover my notebook using recovery disks supplied. When it's finished I set supervisor password using Security Panel Applications. The password is '1234'. When I turn it off and then turn it on again, the key icon appear on panel and i try entering my password but the beep indicate error. Please help me to solve this problem. Thank you in advance. Rgds, Komang