Iphone 4 ios 7 screen won't rotate?

I have an iphone 4 on straight talk that worked great til I switched to ios 7 and now my screen for texting and videos (YouTube and what not) wont rotate with my phone when I turn it (stuck in portrait) I've check the portrait lock and it's off can't figure out what's wrong any advice?

Usually help to close app and reopen or reseting iPhone.

Simply turn the phone off and back on, I had the same problem. Should work great.