EXHIBIT (a)(1)(O)

Pop-Up Box - These will each appear after the person has read the Election to
Participate and the Notice of Withdrawal and "Clicks" to sign and submit the
agreement.

Accept Election to Participate

--------------------------------------------------------------------------------
By Accepting, you agree to participate in the Stock Option Exchange Program. You
are tendering options to be cancelled in accordance with the terms and
conditions of the Stock Option Exchange Program.

Press the OK button to make this election or CANCEL button to cancel this
election and return to the front page. If you press the CANCEL button, your
Election to Participate will NOT be submitted and you will NOT participate in
the Stock Option Exchange Program unless you later properly submit an Election
to Participate by 12:00 midnight, Eastern Standard Time, on February 14, 2002
(or such later date and time as designated by WorldCom).

OK          CANCEL
--------------------------------------------------------------------------------

Withdraw

--------------------------------------------------------------------------------
By clicking ok you are withdrawing your previous Election to Participate in the
Stock Option Exchange Program.

Press the OK button to submit your Notice of Withdrawal or CANCEL button to
cancel this withdrawal and return to the front page. If you press the CANCEL
button, your Election to Participate will remain in effect unless you later
properly submit a Notice of Withdrawal by 12:00 midnight, Eastern Standard Time,
on February 14, 2002 (or such later date and time as designated by WorldCom).

OK          CANCEL
--------------------------------------------------------------------------------