>Hugo:
> Thanks! You were right about ThisForm being out of scope, although I fixed it differently. I created two variables,
>
>lcLName = ThisForm.txtLName.Value
>lcFName = ThisForm.txtFName.Value
>
>and used them in the Filter expression. It works fine.

I would follow Hugo's suggestions or you will get the same problem if those variables go out of scope for any reason.