Why won't music in my apps play?

I just got a new iPhone 4 and sometimes the music and sounds in my apps don't play or are quiet until I close and open the apps a few times. Music in the music player plays fine. Is there a way to fix this?

Added (1). It's obviously not the volume. The volume is all the way up when this happens.

Added (2). It's obviously not the volume. The volume is all the way up when this happens.

Opposers of Jesus Christ, I want you to hear this story?

Just the other week, after spending the whole day studying Genesis on the King James Bible I receive an email on my iPhone;

A Nigerian women which I do not know told me that her husband and family has died and she only has 3 months to live. She wishes to give her fortune to me so I could hand it to the less fortunate and open up a charity. I gave her my info and I'm currently waiting for the sum which I'm going to use to help the less fortunate obviously.

See what I mean? Good things happen to those who love God, like me.

IOS 7 to iOS 6.0.1 to 6.1.2?

Ok, so I was planning on updating my iPhone 4S to iOS 7 play play around with it, but I researched online that you can only restore your iPhone to 6.1.3. I have a jailbroken device its iOS is 6.1.2 and I read that apple stopped signing rollbacks from 6.1.3 - 6.1.2 but they are still signing iOS 6.0.1 - 6.0.2. Can I update to iOS 7, downgrade to 6.1.3 then to 6.0.1 and then back to my 6.1.2 jailbreak using my shsh blobs?

Will my iPhone 4s still be unlocked for T-Mobile if I update to ios 7?

A few weeks ago I got an Iphone 4s. I payed 30 dollars for it to be unlocked to T-Mobile.

I realized that ios 7 will be releasing this fall and I fell in love with it, but if I do update to Ios 7, will my sim card for T-mobile on my unlocked phone work or will it be locked and unable to use t-mobile.

How to get emojis on iPhone 4?

I downloaded an app called "emojis 2" and I went into settings and then on keyboard but there's no option for the emoji keyboard… Please help. Best answer 10 points