I was having the same problem a lot of people are having. I think I found a fix (haven't seen the glitch since). Just do a full DFU mode restore. Please try this out if you're having the same problem and let us all know if it fixed it.
Here's how to do it:
1. Backup using iTunes.
2. Enter DFU mode.
3. Restore using your backup.
Here's how to do it:
1. Backup using iTunes.
2. Enter DFU mode.
3. Restore using your backup.