>Error is thrown at the start of the DO FORM statement. I would beleive if the error is occuring in the form (INIT, LOAD) then the error would be thrown there instead.
>
>This sounds to me like this is probably being caused by some property setting, most likely on a grid (is there a grid in the pop up form?) that depends on RECNO() but is not correctly set when you try to DO the FORM. Try giving this property some reasonable default value.

Look into your suggestion.