It sounds like you're displaying the MessageBox if the user clicks the second radio button (to true), and you're wanting to reset that second radio button to false if they select "NO", correct?

So, in your check_changed event handler, are you checking the value of the radio button and only displaying the MessageBox if that radio button is true? I think if you do this, then when it's reset to false your code shouldn't run again. Unless I'm missing something ....

~~Bonnie

>I have 2 radio buttons on a form, one of the radion buttons is set 'true'.
>
>If the user clicks the second radion button, I display a messagebox to notify the user about a potential problem. The user can revert the change by selecting 'NO' to the messagebox.
>
>My code to query the user is in the radio button's check_changed event.
>
>My problem is: If I set the radio button's checked value back to the original value in the check_changed event, the event re-fires and the messagebox is redisplayed. I am in an infinite loop at this point, until the user selects 'YES' to the messagebox.
>
>Is there a way to prevent the check_changed event from re-firing or use another event to do my check?