After dropping you subclass on the form, are you making changes to the option group on the form? You should not, other than changing properties. Any visual change you need to make to the option group, do it in your subclass. Otherwise, you'll break the inheritance to your subclass.

>When I subclass the optiongroup control and put my new optiongroup class in a form everything is ok. But as soon as I modify anything in the class, the optiongroup in the form doesn't inherite the changes from the class.
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>Ex. If I change the option1 and option2 buttons from vertical to horizontal, the optiongroups in the form still shows vertical. I need to go to each of the options inside the optiongroup in the form and reset to default the left and top values.
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>Is this a BUG!