Music keeps playing when txt comes in

[Mtig]

I got my daughters the droid incredible for Christmas. They downloaded music and made ring tones for everyone and everything. My younger daughters phone when a txt comes in the ring tone wont go off till you pull down the notification bar from the top. I somehow fixed my older daughters phone and everything seem to be the same in settings any help would be great.

I'm a droid master as long as you guys are behind me thanks so much.dancedroiddancedroid

 

[enlightened]

Is either phone rooted?

 

[Mtig]

No the phone is stock