cracking noise from windshield

[Gravija]

whenever i am starting from a stop or over bumps, my windshield will make a cracking sound like something is snapping
this does not seem normal and it really sounds like my windshield will crack again

it has happened with my windshield before (that developed a huge crack out of nowhere) and with the new windshield (only wayt to get it was from the dealer)...anyway i can prevent this sound/protect my windshield? i really don't want to have to replace my windshield again...
thanks