>Nadya,
>
>> how can I create a flashing effect for this label by simplest way?
>
>FWIW, Windows design guidelines recommend that you do not use flashing text anywhere in an application.

Thanks, David. At the first moment, I thought, that it would be a great idea to use flashing effect to get user's attention, but then I decided to just use blue color and a little bit larger font. I think now, it's enough.

Thanks again.