>>Thanks Bruce, you're right, it stop doing it when I took out the class containing the ComboBox.
>>
>>Any tip to correct this?
>
>The fix for the pageframe is to set the combo Style = 2 in design and set it back to 0 in the Init at runtime, you can try that...

Thanks for the tip Bruce, it works.

How come it doesn't happen when I only open this container class with the class designer? It only happen when I open the form class that contains it.

Oscar