This would have to be caused by code you have in your option groups. Have you tried tracing through the code? What do you have in the GotFocus for option15 of OptionGroup2?

>Hi,
>1. I added an optionGroup2 to a form. This one with 15 options. When selected, the 15th
>option displays a wait wind mesage.
>2. Previously I had added another (optionGroup1),with 4 options.
>3. When each option from OptionGroup1 is selected, some
>code is executed.
>4. The problem is that when the code is finished, it (unexplicably to me)
>executes the 15th option from OptionGroup2, displays the wait window message.
>5. This is followed by an error message, indicating that the program gets stuck at
>ThisForm.OptionGroup2.Option15.distroy().
>But can't understand why this is happening?
>Thanks
>Steve