I am going to suggest doing the ol winmo way of app installation or settings change...RESTART THE DEVICE! I installed the second leak and it went bad! i went back to the old one...then i got upset cause i NEED the latest and greatest so...i tried it again. but soon as i installed all my apps i restarted. then i setup my settings the way i like, then restarted. its running nice and smooth now...really thinking off restarted after every single app. just a suggestion.