>I call a UDF called getdate from a form and when it processes a seek() with parameters it gives me the error "Thisform ......"
>If I ignore the error the other times I call the UDF it's all OK.
>I call this UDF even from other forms with the same statements and it never gives me any problem.
>Any suggestion ?
>Thanks to all
>Alessio
>
>My English is getting worse

UDF should contain direct reference like frmMain.Property1, and this is strange that you didn't get errors in other places.