I can't create a To Be Read First in DVD format but works in flash format

Hi

I create my project with an intro to be read first (the first chapter) and go to Main Menu.

In Flow chart OK

In PreView OK

If I build it using Flash It works like a charme

If I build it in DVD image The To Be Read First is not read. The DVD goes directly to Main Menu ...

Encore CS6, windows 8

Any Help

Thanks