Have you performed a System Cache wipe since the JB update? I would try it, it will not wipe your phone, you will not lose anything. If you are going to do this, make sure you follow the instructions exactly, as failure to do that could wipe the phone by accident.
Turn the phone off and perform Clear Partition. Clearing the partition will remove any temporary files that may be causing the problem, but will not delete your files or settings.
- Power the phone down.
- Hold the volume up and down and power key down all at the same time until you see the Boot Mode Selection Menu. This should happen within a couple of seconds.
- Press the volume down key until "Recovery" is highlighted. Press the volume up key to select.
- Wait until you see a triangle with an exclamation point in it.
- Press and hold the volume down key. While doing that, press and hold the volume up key then release them. This should put you into the Android system recovery.
- Press the volume down key until wipe cache partition is highlighted.
- Press the power button to select. You will be brought back to the Android system recovery utility when it is complete.
- Press the power button to select "reboot system now". Wait for the phone to boot.
Check to see if it cleared the problem. This fixed a couple of app issues with my RAZR after the update.
