>I am using the following to find a matching client number....
>
>Seek(This.value,'client','clientnum')
>
>Once I locate a match, I need to check a subsequent field for a secondary match (firmid). If this record does not match the firm as well, I need to search for the next match of the clientnum and check the firm and do this until the clientnum is no longer found. How would I do this?

Sounds like LOCATE would be a better choice here, since you could check both, and if there were appropriate indexes, the LOCATE is Rushmore optimized IAC.