The common sense is in the fact that the flashing warning lights and signs are consistently used everywhere for over a hundred years. Then there is a point in their existence.

And it just may be that the millions of dollars for the research were spent by the managers trying to prove their own importance... :)

>Why is it common sense? Dave was right...flashing text is not easy to read. And blinking is allowed under Windows UI guidelines. You can flash the application icon in the task bar.
>
>>I believe one doesn't have to spend million of dollars to have a common sense. :)