I'm having the same issue now that my script includes more than one option from the drop-down list. Using the example above, I now have included the option of year 4,6, or 8:form1.#subform[0].#subform[1].#subform[2].YEAR4.TextField17::calculate - (FormCalc, client)if (form1.#subform[0].#subform[1]....