Quickform issues

Bertrand, I need to have the following functionality supported in Quickforms 2.1.5: 1) Having a group of radio buttons with no default value set but with a required rule set. For example, a 'yes' or 'no' question or a mandatory quality question like: Rate PHP: () superior () average () unacceptable. I do not want to start with a default value BUT I want to require that a radio button is selected. The following code sniblet does not work: $radio[] = &HTML_QuickForm::createElement('radio', null, null, 'Yes', 'Y'); $radio[] = &HTML_QuickForm::createElement('radio', null, null, 'No', 'N'); $form->addElementGroup($radio, 'Yes/No:', 'iradYesNo'); $form->addGroupRule('iradYesNo', "question is required.", 'required','',0); // regardless of '1' or '0') One thing I do notice is that a warning is thrown on QuickForm.php line 1563 because this radio group is a single value and NOT an array. I can not find in the code where the decision is made that checkboxes are stored in arrays and radios as single values? Any hints? 2) An alternative to the above would be having a rule for checkboxes such that one and only one box is selected. Can this be done? It does not appear to work. Thank you. Jack Kline PS. I need a solution very soon as I plan on delivering something for a client asap. THANKS!