I just tested it on my home PC - 2.4Gh, and the flash is still there, but you almost have to know it's coming and be watching for it.

Alan

>Hi Alan,
>
>Obviously, it can be easily worked around with adding THISFORM.HIDE() into Form.QueryUnload() event method.
>That also should be called if one wants to release the form with the Form.Release() method.
>
>The sample only demonstrates the principle of Modal/Modeless switching on the fly.
>
>
>>One unfortunate problem with the code that needs to be worked around: Run the code, click the 'modal' button once, and then close the form using the 'X' close control.
>>
>>Alan
>>
>>>>>Can you set the WindowType to Modal?
>>>>>
>>>>>Wan
>>>>
>>>>Not on the fly.
>>>
>>>Actually you can do it on the fly.
>>>
>>>FAQ#7921 "How can I make my form Modal/Modeless on the fly."