indicate duplicate information

[Guest_imported]

please help,

i have 2 tables: "IP" and "Recipients"..now, in some cases, the Recipient is the IP himself, and both tables have an address field...how do i deal with not requiring a second entry of the same address on the subform...could i used a checkbox of both are the same?? if so, how do i go about doing that?? if not, any suggestions??

thanks..ni